Vortec 454 mods Jump to Latest 12K views 3 replies 3 participants last post by void_of_light Aug 30, 2009. Reply. The boat is powered by the "plain jane" Mercruiser 454 (carb and not the "Mag") and is coupled to a Bravo III outdrive. Like "borderline 350" used to say, "no hencho stuff". As one can imagine, the potential is there but it doesn't hit as hard as I know it should, especially after driving a stock one with no blower. Ultimate tbi mods are pointless on a v6, and they don't do a great deal on a v8. youll have to stick to a torque cam because of the computor needs vacuum (speed density) headers will help greatly. Now, after tuning, it gets 19 city and 20 highway with the only mods bieng a cold air intake, exhaust and a very mild cam from an S10 Extreme. 90mm at the front opening 3 It has a stock L31 350 vortec, 4L80, and 3. 5:1 as I am keeping the Vortec heads. I have a problem where I sometimes design and plan and build a motor before I have the car it goes in. Spectre Performance Muscle Car Cold Air Intake Kits 901234. 7 vortec power upgrades. They make no top end horsepower and when GM went to port injection (vortec 454) they picked up a bunch of power with better ports and cams. Hell, no. I have a V6 with a lot of bolt-ons and a tune from BBP and I'm still running the factory black box style PCM, no complaints here. 56 might be abit tall. beam-monsters I have some facts regarding the 98 L-29 Vortec heads. 10:1 gearing, sometimes 3. Stock 454 cam isn't bad, I think it was 208/208 . New posts Latest activity. Latest: Prius454; 53 minutes ago; 96+ Vortec Performance I'm getting ready to rebuild this 454/7. Makes the truck sound a little meaner at WOT too. although it is complete and Upgraded Vortec cylinder heads, a more aggressive camshaft, and reprogramming TBI chip to make 300 horsepower or more with a GM Chevy 305, 350, and 454 engine with factory TBI injection. 8 Vortec build with the right parts. Probable the shortest distance from where your at to what you need is a 454 and its computer from a donor truck of the same year as yours. However, Chevy still offers the 454 big block V8 as a crate engine. As such, all the modifications we look at today largely add horsepower gain by default. The lift is limited to . If the injectors are bad, they will allow fuel to leak It makes sense that Lextech gives you the base parameters and since every truck is different/ mods/ etc. 75:1 OD, while the NV4500 is 0. Forced induction power builds will need supporting mods to be run safely, but when done properly the engine is more than capable of taking If you would rather consume this content via a video, check out our Best 4. 25 5. I've got a 97 Vortec 454 stick shift 4x4 truck. Getting rid of the factory tune is almost always a great way to free up some extra horsepower and torque and gain so I have a 2000 OBS Chevy quad cab with a 454 Vortec. 3 Vortec and it is sometimes called the 454 Vortec. What are some of the things i should be doing to it first for performance wise. Also subject to change are oil pump, lifters, push rods, pick up and oil pan. 0 Vortec engine is part of the third generation of small-block V8 engines. by wanting to keep your current injection system you will be limited to what mods you can do. L29 454 Vortec with 0411 swap - Timing at WOT; Page 1 of 2 1 2 Last. It will come with everything I need to drop it in, minus the carb. . I will Engine Mods - 1997 Vortec 454 Mods - Has anyone modified a vortec big block? I have a crew cab that is a dog, but I can't seem to find much in the way of performance parts. The Vortec's 5. so i have my 1997 Suburban k 2500 7. I’ve both and really like the vortec The motor heads I have talked to make a big deal about what era the 454 is from. Spectre Performance Muscle Car Cold Air Intake Kits 901234 Black Bear Performance tune for the Vortec 454, change out the muffler, rest of the exhaust is fine. You did all those cool mods, but don't expect one of their cookie-cutter tunes will take advantage of them. Joined May 31, 2016 Messages 1,173 Reaction score 437 Location Green River, WY. I've thought of cam, Jet mass air flow, 411 swap, even thought of maybe pro charger. So far my plan was a Aem cold intake , chip it , new fuel pump, new alternator and possibly exhaust system. But yes, between the Gen IV and Mark V+ engines they changed the cooling ports on the heads. '12 Cruze Eco M6. 4 L (454 cid) V8 was a truck version of the engine. Video: It’s not all about horsepower! We take a Chevy 454 big block and dial in hard-hauling, heavy-pulling torque. The older 454's are legendary workhorses, there's a handful of Oak captains that have logged 10,000 plus hours on an engine, and lots of old time motorhomes have them piling up the miles. I also can't seem to find any web sites where the vortec's are discussed. Save Share Mods so far are Edlebrock 2162 cam, TBI Harris Towmaster chip, and Edlebrock headers. Bore, heads, cam, intake and such. If you click them and make a purchase, we may earn a small commission. For GM vehicles, David in Illinois said, "Just wanted to thank you for your advice on my 454 Vortec Silverado. It runs okay , but i want it to run great . 25" stroke rotating assembly, Racetec forged pistons to keep compression around 9. See what I'm thinking here? I'm just looking to get more out of it or swap for something that has more grunt with minimal mods. The Vortec 454 and 305/350 started in the trucks in 1996, so gains from Call it what you will, the 8100 was the result of GM bumping the Vortec 7400/454's 4. dog walker Discussion starter. Better all around. What do you guys suggest. 4L v8 automatic transmission 4L80 Borg Warner transfer case 4. Let's continue on to discover the best 5. 7 Vortec is the Chepest swap/Upgrade for 96 & up S-series Hands Down!!! The heads are a copy of the Iron LT1 & heres a Dyno sheet from a Comparison from LT-1 to LT1 out of a 96 F-body!!! Thats why I say F-body is a No brainer for engine 454 7. When I built mine some of the cheap upgrades included: Transgo thicker separator plate (the steel check balls beat up the thin stocker). Fingers crossed Howell still makes the harness. However the factory injectors are known for giving hard warm starts. GONE_FLAT; Sep 4, 2024; 96+ Vortec Performance + Computer Swaps; Replies 4 Views 508. 4 Vortec) big-block V8, If you want to make more horsepower through 8. Thread starter rumpityZ28; Start date Jun L29 454 MODS. I've got a '95 chevy with a non-vortec 454 that I believe was originally rated at 195hp or something embarassing like that. BUDGET VORTEC; BLUE WHALE VORTEC TBI; CUSTOMERS PROJECTS. One of the pistons ended up damaged (seller says a couple parts of the #4 piston broke off). And multi port injection. 10145 posts · Joined 2003 Add to quote; Only show this user #1 · Oct 26, 2004. The 1996-2000 350ci Vortec 5700 engines enjoy lots of aftermarket support to help improve the 255 hp and 330 lb-ft of torque they're rated for at the crank. 7L Vortec heads were the "hot tip" for small-blocks. b454rat. Chevy 454 HO Crate Engine. engine mods on a big block. 4L/454 Air Intake Kits. He complains that It doesn't have the power he thinks it should. 1997 chevy K2500 7. I also bought the blank distributor cover that replaces the cap. I own both, and I've owned both as NA and supercharged. "Two years ago we undertook an exhaustive (no pun intended) study of the Vortec head in numerous modified states with different valve sizes, throat cuts, valve jobs, port mods, guide mods, etc. :laughing: GM TBI system works best with high vacuum. Thread starter rumpityZ28; I think that is true for the ones running the van tune and Vortec ignition, but not for the CNP conversion. Save Share 454 gen v vortec swap modifications thus far consist of cam swap /edlebrock 2162 500/500 112 degree LS, Edlebrock tube headers running into stock single exhaust, TBI harris L29 454 MODS. Of course the flow numbers will be different from one flow bench to the other but what’s important here is what’s the before and after flow numbers. 5" rear axle and a 4l80e trans stock. We take a Chevy 454 big block and dial in hard-hauling, heavy-pulling torque. Thread starter TN454K3500; Start date May 4, 2023; Another 454 Vortec Build Thread - Documenting, Q&A, Help. The plan is to upgrade injectors, ditch Whippletronics, and go full 411. Any other mods to attempt would be appreciated too. Some say it helps but the stock intake piping is already capable of flowing more than the throttle body itself, so it's really a he said/she said thing. the 454 is more expensive, but only by a little, The 96+ vortec doesn't make that great of power, and the tbi's are anemic. Gains of 40-45 HP and 45-50 lb-ft torque depending on existing upgrades; Gains of 1/2 - 1 MPG ; Maintains speed and higher gears when climbing hills; 7. An increase of 52 hp is always welcome The L29 454 was originally rated at 290 hp and 440 lb-ft of torque thanks to a combination of fuel injection, large oval-port heads (to replace the peanut ports used in the previous Gen V motors) and a slightly higher static stock efi vs carb, full dyno results, plus cam & cheap nos. 7 to 98 cc sized true closed chamber heads, along with a 210/210 cam, said headers and such and go. That means low MEP's and high BSFC = poor economy. I'm a newbie to the Gen V motors and What I'm hoping to accomplish is specific head upgrades whether it be aftermarket or factory from a different generation, also discovered viktor reinz doesn't make the gaskets anymore to put mark IV 98 Vortec 454, what cam? Jump to Latest Mods: Dual flowmasters Edelbrock 1406 600 cfm carb Pertronix points eliminator Adjustable vac can and re-curve Open element aircleaner with 3" K&N 2000 rpm stall Trans-Go shift kit. 4 Vortec put down 290 horsepower and 410 lb-ft of torque which is nothing crazy for a 454 cubic inch engine. If you would rather consume this content via a video, check out our Best 4. Using the factory heads whicb are the 045's. GM ran out of valve covers in 1993 and put vortec 4. The engine was zero decked, bored . Fortunately, GM overbuilt these engines and then underpowered them, leaving a ton of room for peanut port bbc heads-do they make power? can you upgrade the gen-v 454 truck motor? how much power does a stock 454 make? what is a good cam upgrade for a t the vortec heads are actually a very nice head design and will probably out perform the 049 in your application. Possible upgrades 99 Vortec 454. Big thanks to James for letting us come over and do the video, a -Cap the noise box hole. a few mods. watch out for chips as they just bump the fuel curve. 3L and if your 1994-95 4. We used up about 10 heads, numerous valves, and about $50,000 worth of labor. 4 Vortec. Best 8. 4 Vortec Also known as the Vortec 7400, the L29 was the final and most modern iteration of the venerable big block Chevy. Redneck refresh 2000 K3500 CCLB 7. The Vortec 7400 was based on Chevrolet’s 1995 7. 2L Vortec engine design was phased out. Also known as the Vortec 7400 (7. 000 mls it is time to rebuild my 454 TBI engine. Drive the snot out of it! I've got a 1999 K2500 Suburban with the 454 I drive daily. 0525 I have a chance to purchase an engine and transmission combo for a project. Very disappointing. Building a L29 vortec 454 for my Jeep J20. Stock ECU Tune on 1999 L29 454 I have already considered a 411 swap but I would like to keep it a close to stock as I can with only a few mods Already done: no Cats, Towing Cam, Bosch injectors (5,0 motorsports) MSD Cap, rotor & Coil. Programmers. 0 Vortec Engine History. 1965-1975 7. Figure weight of toy hauler to be around 12000 to 15000. I've got a 99 Vortec 454 that im about to put in my tow rig. Later, the engine also made its way into the Express and Savana vans, Silverado SS, and Escalade EXT and ESVs. 0/1 CR, roller cam and broad powerband from idle to 5000, then the 454 Vortec is the way to go. " The big-block was built off of the GM 454 engine platform, also known as the 7. Thread starter rumpityZ28; Start date Jun 17, 2020; Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. Plugs/wires/cap/rotor (don't cheap out on these parts). the semi closed chamber of the vortec increases your compression ratio and the 049s will drop it sacrificing alot of potential power. Jump to Latest 33K views 18 replies 9 participants last post by GRN69CHV Jun 3, 2011. Front Sumo Springs, Rear P32 Sumo The vortec 454's seem to respond well to mild mods like headers (i've got gibson stainless mid length), cold air intakes like airaid, performance plugs, performance wires, etc. 3 Vortec Have? The Vortec LM7 original produced 270 horsepower , and 315 lb-ft torque. I'm running an edelbrock squarebore intake on my 454 with vortec heads on my truck. The Official Vortec 454 Info thread. I did a search and found nothing. At same time I will get rid of that crappy TBI setup and change to a full sequentiell EFI using Vortec parts, distributorless ignition with coils and PCM from a LS1 which I can easily programm myself to my liking. It went through different upgrades over the years finally ending with the 454 Vortek which stopped production in 2001. How Much HP Does The 5. Since vortec 454s aren't falling out of the sky anytime soon, this merc engine seemed to Rather than spending over $2000 on heads, I have found that using a flat top piston 496ci stroker kit and fixing the pitiful 7. 4 vortec 3/4 ton long bed truck, NV4500 5spd manual trans, mainly used for errands and towing 7-9k# trailers 454/7. Tbi engines have a regular old school 14” round air cleaner. I plan to upgrade the cam, headers, and catback. 6 rockers * P59 swap * Whipple supercharger * JBA headers * AFR 190cc heads * NV4500 swapped 97 K3500 454 Farm Truck Basic Mods. Free Ground Shipping On Qualifying Orders Over $199* offering enhanced performance in vehicles like the 1990-1993 Chevy 454 SS. Bachert24. 8L Vortec Mods video below: 1) Cold Air Intake Upgrades. cool_as_crap said: I'm going to rebuild my 454 soon and I'm starting to gather parts now. Vortec 454 oil fill. 1 Vortec upgrades, you have a few different routes. These ultimate mods increases flow to 500cfm which maxes out at 275hp before it starts restricting power. Vortec 454 have a factory roller cam and better flowing heads also. Jump to Latest Both Vortec 7400 heads (the '98-'01 12560241 and the '96-'01 10141279) have about 100cc chambers. The 1996 Vortec 7400 I'm interested in the available upgrades for the vortec 454. However they only have like 235 cc intake ports vs 195 to 200 cc's for the P-P heads and yes, the exhaust ports are real small but do flow a lot better then the normal exhaust ports that peanut port heads have. Results 1 - 25 of 2000 + 25 Records Per Page Default Sort . See All "I have a 98 3/4 ton with a vortec 454 in it. Fuel system upgrades, such as 3/8 fuel line to handle the engine’s fuel demand; A vortec 454 makes good power. 75-9. Since the 8. 1; 2; First Prev 2 of 2 Go to page. Increased cool airflow into the engine is how cold air intake systems function. I am putting together a budget Gen VI 454/4L80E combo for my 66 Impala 2 door and am looking for some insight in which direction to go with the heads. Bolt-on mods for carb 7. The big box that says "Vortec" on your throttle body hat is just a noise suppressor, I removed it and used a 2" plumbing pipe cap to block it off. A friend of mine has a late 90's 2500 Silverado extra cab 4wheel drive with the Vortec 7400 454. Tall deck block after 200. I have to notch the But if you are considering buying a brand new set of Vortec heads, Scoggin-Dickey offers an already modified and assembled Vortec head. Anthony C Cabler. There are free or relatively cheap mods for sure, like the infamous reverse air lid trick on TBI engines, the ultimate TBI mods, and making your own AFPR for your TBI engine. Part Groups. 4 Vortec performance upgrades is tuning. Members. C4 Tech/Performance - any suggestions on Vortec 454 performance upgrade - Currently have -Headers w/ dual exhaust -K&N filter -160thermo w/ Hypertech programmer looking for a good Alum Head, CAM, piston combo that will work best with the factory fuel injection. I've been researching all the other build plans and results already to get me started. The best mods I can recommend that work is the Banks Power Pak exhaust It’s not all about horsepower! We take a Chevy 454 big block and dial in hard-hauling, heavy-pulling torque. The casting #'s are 10141279 for the heads and 10237297 for the block. Also how much horse power and torque do these motors have stock? Is this a Vortec 454 or TBI? Nov 16, 2016 #3 Christian Steffen I'm Awesome. The banks power package is nice but I think it's a bit pricey. Jump to Latest It kinda sounds like after all the mods you are looking at doing the block, crank and rods are the only pieces left. payne97 is much more efficient at pulling than a gas burner and all it takes to wake them up is a good programmer vs. As you can see HERE, much care has to be used if porting these heads, they have a "peanut port" sized intake port w/a vane cast into the port. 632 posts · Joined 2005 Add to quote; Only show this user #1 · Aug 29, 2009. as far as the cam, make sure that year didnt have the core support going down the center of the rad (pretty sure it didnt). That's why they have small ports and a small cam. Filter by Availability Filter Results Filter by Vehicle Individual Parts. If a high rpm, high HP 454 is desired, then the 454 Vortec is the wrong motor. M. 603 posts · Joined 2003 Add to quote; Only show this user #1 · Jan 7, 2004. The picture is a stock 1997 vortec 454 throttle body that measures 3. Primary use is towing an enclosed car trailer. Skip to Navigation Skip to Main Content Skip to Footer. 42:1 with stock Od and a GearVendors, and get empty MPG in the upper teens. Headers exhaust. In this application would you go to bigger valves or keep the stock size. 5 or 10. Our content range from Vortec mod guides to engine problems to comparisons and every between. Vortec Lover Behold the Beast. S. " BRAND NEW GENUINE BOSCH FUEL INJECTORS - MADE IN U. The 454 could happily pull a 3. Mustang-22; Nov 1, 2024; Engine Performance + Maintenance; Replies 6 Views 541. Latest: Prius454; 48 minutes ago; 96+ Vortec Performance + Computer Swaps. Any suggestions on affordable performance upgrades for a 97 Vortec 454? looking to get some advice on mods in order to get better gas mileage on my 454. Nov 10, 2024. Joined Jun 7, 2013 Messages 1,171 Reaction With factory power ratings in the 250-300 horsepower range, it is not that uncommon to make 400 horsepower with a stock bottom end 4. In the end this will be a weekend cruiser with maybe one or two trips to the track per year to see what number it runs. First I start with a new Fuel pump , STOCK 75lph TBI fuel pump will only support about 230hp before the fuel pressure drops like a rock. TB would be better. Share: 454 L29 Vortec Engine Performance. I have put together a Vortec 454 with some aftermarket goodies. Check in next month to see how the big Bow Tie does on the dyno after all the mods. Replies 171 Views 16K. -454 Throttle Body. Vortec L-29 heads are by no stretch large ovals, imho Chevy’s Gen VI, Vortec 7400 L29 7. HP Tuners VCM Suite MPVI3 Credit Pro Packages M03-000-02 Found a complete, running, 1998 454 vortec (L29?) out a chevy 3500 with computer and harness for $750. * L31 350 Vortec * AUS 43lb injectors * Comp 08-410-8 with 1. 480 Previously, we looked at the top 5 5. Jump to Latest Come join the discussion about racing, builds, pro mods, hot rods, events, turbos, nitrous, superchargers, and more! Show Less . 73's. IF there is an issue with the mod please for the love of god pm me before leaving a review so I can fix it! Vortec Line of Engines Vortec 3500 (needs rework but accurate still) LL8 Vortec 4200 L35 Vortec 4300 LR4 Vortec 4800 L30 Vortec 5000 (TBI Parts) LM7 Vortec 5300 I did a 92 454 TBI into my 79 GMC with a few of the mods listed and it pulls pretty good, better than I thought a TBI engine would. 0 L V8 (LO3) 1988-1997 5. 3L Whipple with associated Whippletronics. What's new. 3L is only going to gain you about 15hp from 3000-5500 and lose that much below 2500 rpms. I. Sharing the 454's 4. The 7400 was essentially the same big block 454 that carried Chevy through the muscle car years, but a hydraulic roller camshaft and revised cylinder heads helped to make The only other gas engines I think could go in would be the 5. PCM was from a 2001 Express van, with 350 Vortec and 4L80E. 0 Vortec are upgraded camshafts and superchargers. The first mod we suggest for the 4. I have access to a 97 Vortec 454. I cannot seem to get it to shift out of 1st gear when in 4x4 Low Range. Go. Importantly, this mod will not apply Find CHEVROLET 7. Intake pattern has never changed on the 454. You will "91 octane" also doesn't belong in the same sentence as "454" and "economical". Fortunately, GM overbuilt these engines and then underpowered them, leaving a ton of room for performance upgrades. 37, thanks to longer connecting rods and a block with taller decks. Here are the facts that pertain to my project. of torque to the engine and that's what he needs and will benefit from when driving and towing. 96+ Vortec Performance + Computer Swaps . Jump to page: Results 1 to 20 of 35 Thread: L29 454 Vortec with 0411 swap - Timing at WOT. I know the plugs and stuff just seeing if there are any other ones out there. The 454 just does not back down to a load the way a 350 does, and the 350 puts up a damn good fight. 5 L Turbo Diesel V8 (L56, L65) Back. At 5700 pounds empty there just isn't enough motor there for towing much of anything. Vortec 454, bored 30 over, Scat 4. A few Chevy Vortec articles include an ultimate 8. 5" or 88. Upgrading a 454 engine provides multiple benefits: increased horsepower, improved throttle response, better fuel efficiency (to some extent), and overall enhanced engine reliability. Mods are 1-3/4" headers, Edelbrock TBI intake, modified throttle body, roller rockers (intake and rockers came with the engine), Comp Cams TBI cam and tuning changes based on a tune EagleMark did. So, I am contemplating upgrading this Click to learn how to make 454 Vortec performance upgrades. They accomplish this by substituting a bigger, less constrictive air filter for the stock air intake tube. But, if someone wants a reliable, cost effective, torque motor, c/w streetable 9. 454 VORTEC UPGRADES. Explore Our Forums. 3 Vortec mods, but you’ll need a custom cam machined if you want anything more than a 500 lift. He did say it will fire up and idle so that is good! Another 454 Vortec Build Thread - Documenting, Q&A, Help. it is up to you to fine tune. Heck it even shifts smoother. The marine injectors are the most common upgrade. B. 12/03/2020 at 10:05 PM 92 The 454 will walk all over the 350 in terms of towing stock for stock, mod for mod, there is no comparison. Superchargers are great L29 454 MODS. I have an 89 Chevy K2500 with a Vortec 350 engine (906 heads) and the GMPP 12496821 Intake, Edelbrock shorty headers with true duals no cats, Ultimate TBI Mods, 91 needle gauges (Thanks to you guys) 454 TBI unit would definitely be better in airflow and fuel flow when it comes to that engine. runs like a top. So I Forums. It needs the 1x cam sensor to know whether to fire #1 or #6 on a full CNP setup but not when the distributor is doing the firing. 1 with stock iron TBI 454 heads and that same 211/219 duration camshaft or something similar will yield almost as much horsepower and more torque for less money. I have a 97 3500 with a 454 and 2. Heck, buy an old farm truck 454 engine and add a pair of old -206, 96. 505 posts · Joined 2001 Add to quote; Only show this user #9 so the 496 has less aftermarket, but more base line power, the 454 has a little less power but a bigger aftermarket. 030 using Keith Black pistons, a mild 264 Comp Cam roller, Comp roller tip rockers, Merlin oval port big block heads with shorty headers Compression 10. Improved starting, smooth idle. 4L Vortec (454) Custom Tuning which involves swapping out the ECM? While the extra HP and Torque would be nice I'm really Journey with Confidence RV UltraRV power mods. I THINK I want a diesel until I look at the prices. It was available from 1996 to 2000 in 2500/3500/3500HD trucks and 2500 Suburbans. I've been tuning GM EFI since '99 and I guarantee 25HP and 10% MPG increase over factory and that is just on the first try. Staff online. 4 vortec 3/4 ton long bed truck, NV4500 5spd manual trans, mainly used for I recommend upgrading to the 1996 Vortec 155lph fuel pump which can support up to 450hp and plugs right into a factory TBI sending unit. 1 Vortec (also known as the Vortec 8100) was the last engine in the big-block lineup. The first recommendation we have for 7. Oct 7, 2024. Doug Thorley Headers and MagnaFlow 12589 mufflers. A. The 454 ones are very low compression and poor flowing . to/2PEI69S95 C1500 GMCLift Shack With an 80% VE, 454 cubic inches, and a power peak at 5000 RPM, you would require a combined flow of about 525 CFM through your exhaust. Problem is the 454 never came in a The 454 TBI typically came with standard 4. GM debuted the 6. 4L/454 Engine Rebuild Kits and get Free Shipping on Orders Over $109 at Summit Racing! New Twist on the 0411 Vortec 454 swap!?!? Thread starter Wilder Motorsports; Start date Dec 12, 2017; I'd likely make sure it ran well first before doing the 0411 mod. Thread starter rpf500; Start date Nov 13, 2014; Prev. 0 Vortec in 1999 inside the Suburban SUV and the Silverado 2500 and Sierra 2500 trucks. Heads- I know that the chevy Vortec 7400 heads (also Gen VI) are of the large oval port design, so I would find a set of them on ebay, put some larger GOOD valves, good springs,etc. I have done some mods but a cam and computer tune are next. After you take the truck for a test drive, shut it off, then try and restart it. bluex; Nov 6, 2024; Engine Main Recommendation is dont touch the TBI 4. I will definitely recommend you to others. The Vortec 454 will kick it's ass but then you have the occasional expensive Vortec 454 Exhaust. 00-inch stroke to 4. Thread starter It uses the reluctor wheel and crank sensor from the L21 big block which is a vortec 454 with coil packs. 4L L29 motor and want to run the mods past you guys for recommendations. Scott-m. I'm having issues with it now. 3 Vortec Mods video below: 1) ECU Tuning. Found this on another site: Vortec is a bit better about mods becuase it at least as a MAF to help the engine figure out how much air is coming into the engine and they actually have half decent heads from the factory. View Profile View Forum Posts Hey strangers. 99 l29 upgrades coming soon. 3 Vortec Bolt-On Mods. No you're right about the hood clearance, but I am making the same mods to my current engine using a serp bracket and accessory system. Jason Payne. 7 L V8 (L05) 1992-1998 6. I bought the LS1 coils second This is a recommendation as I have done quite a few upgrades on 454 truck engines for towing including 2 for my personal boat towing uses and THEY WORKED VERY WELL! First things first, GET THE COMPRESSION UP! You need to buy a pair of GM iron Vortec part number 10141279 - 1998-2000 heads. These Chevy 454 Vortec engines made 290 horsepower and 410 lb-ft. Mrs. The only mod you should make on a tow rig is hooking up a trailer. The study generated 100+ pages of flow and swirl data, which I have at my Motors Garage Crew Discord Server: https://discord. 1 gearing Modifications: cold air intake, 3" dual exhaust, rest all stock. HP Tuners VCM Suite MPVI3 Credit Pro Packages M03-000-02. While a ”454 peanut port build” isn’t as powerful as starting with the earlier Mark IV, for a budget starting point don’t count out the Gen V. Then I thought that the 454 only came in 3/4 ton and 1 ton trucks. Also what would be a downside to running a obs mid 90s 2500 truck with a boosted 454 launching in 4wd? From what I read, 9. From air intake to exhaust upgrades, discover ways to make your engine produce more horsepower! It uses the reluctor wheel and crank sensor from the L21 big block which is a vortec 454 with coil packs. 3 Vortec HP upgrades for the typical LS owner. Do you guys know anything about the L29 Vortec motor. Anything that will help the performance. 98 c1500 pickup 2wd sway bar size help. I'm not real familiar about the 454,but,I think you may have some minor mods on the timing cover if using the older style w/ o crank sensor & will need to use a melonized gear on the distibutor for the roller cam. 2:1. It's rated at 690-750cfm, GM built the engine from the smaller 454-cid (7. I dropped L29 heads onto the 454 in my boat. A few of the best Chevy 454 upgrades include: Cams; Headers; Intakes; I'm not sure if there 's a specific thread on this or not but I'm hoping to gather some info on upgrading a gen V 454. Full Forum Listing. 42:1 in vans ) and the 4L80E was a 0. Are they dogs that can't be fixed, or I am just not finding the right I made a few posts on my 454 rebuild and hop-up in the general vortec thread that really should be in a new thread, so here it is. All the accessories including the A/C pump and power steering. This mod adds a new engine : 454 CUI 'Crate LSX' V8 Vehicles: Barstow; Bastion; Bluebuck; Burnside; Pickup; Roamer; Moonhawk; Sunburst; Vivace; 200BX; Legran; Sunburst The big upgrades on the 6. The "lid flip" is basically flipping the lid of the air filter cover over so that it can make a cool sound. rpf500 Well-Known Member. Damned scary deal, to my CHEVROLET 7. I am providing a ground signal to Pin C2-16 when in 4 low only, and a +12V signal The 454 responded very well to the cam upgrade, as the peak numbers jumped from 376 hp and 482 lb-ft with the stock cam to 428 hp and 507 lb-ft of torque. 73:1. CHEVROLET 7. 4L/454 Parts and Accessories. The Gen 6 block is considered by many to be a good starting point for a nice street 454, since it comes already set up to support a hydraulic Vortec 7400 – Introduced in the 1990s, used primarily in trucks and SUVs, with a focus on low-end torque for towing. , in L29 454 MODS. R. Thinking about replacing the pontiac 455 in my trans am with a fuel injected motor and was wondering about the power potential of these motors. Basic bolt-ons, like headers, a cold-air intake, After messing with my brothers 1992 454 TBI dually truck and now my 1991 TBI 454SS, I am going to say, I am not a big fan of the 91-95 GEN V big block engine. Cams will add 25-100 whp depending on their stage and size, while supercharging will only be limited by the size of the blower. A good tune, a free flow exhaust, tires inflated 5-10 pounds more (but not to exceed the side wall max psig), maybe put an air dam under the bumper and streamline the General Q & A - 454 330hp upgrades - Fixing to freshen up a friend of mines 454 330hp. The guides are machined to increase retainer-to-seal clearance to accept 0. with various rotational mods, using tunnel ram and blowers to drive your offshore boat to scary speeds. Results 1 - 7 of 7 25 Records Per Page Default Sort . All these mods are a good start, most are smog legal too. 3L from the junkyard then add a selection of budget-friendly upgrades. 4 L Vortec V8 (L19) 1988-1997 5. Be very careful putting old heads on new blocks. 0 Vortec (but why downgrade?) and the 7. He is wanting to step it up a bit maybe around the 450hp range. - I started a thread about the 454. I know a guy who is doing exactly that. 3L valve covers on both engines. The Muscle Automobile Period had come and gone before the 7400 series debuted. 1 Vortec engine guide and the best 5. But vortecs have a big plastic thing over the top that says vortec. In the realm of engine upgrades and enhancements, the 4. I have verified the pins and wiring, it's all good. Still not totally clean of getting the rocket science of OBD-II systems integrated but shrinking the financial distance required to solve the technical problems. With the late model heads, you still have to deal with the conversion studs and whatnot, but the heads at least have much greater potential than the older peanut ports. Season 11, Episode 14 Dirt Track Small Just a FYI on the Vortec 8. better yet have it tuned (Brian Bosch I believe is the I have performed a 0411 PCM swap into a 1999 Quigley 4x4 van. Replies 171 Views Lots of fast ls trucks, but how come not many seems to care about the vortec 7400 from 91-99? I am interested in possibly boosting an old truck. 1 is capable of handling a good bit more power than it came with from the factory, there is some decent potential with performance upgrades. Nov 1, 2023 #3 bucket Super Moderator. Some say they are good some say they are junk. 8 Vortec presents a promising future. Spacer:https://amzn. Off of a '96 or later L29 or L21 454. 75:1 stock compression ratio to a more desirable 8. The 454's are MPFI, not like the CPI 305's and 350's, so there are upgrades. 454 vortec heads aren't like the small block vortec heads. 4/454. Only engine mods are a short ram intake and cat-back exhaust, nothing major. Nov 2, 2024. 4 L Big Block V8 (427, 454, 502 CID) 1988-1995 7. CAMS are expensive and on a TBI 4. 4L 454. HD2 absolutely Upgraded to Does anybody have any experience with the UltraPower GM / Workhorse 7. But if you plan to use these for performance purposes they are terrible. 3 Vortec performance mods, so make sure to check that out if you are looking for more info on power upgrades. Introduced in 1996, it was produced for five years, until replaced by the Vortec 8100. 3L has Vortec valve covers that does not make it a vortec engine. Vortec 454. Latest: scott2093; 54 minutes ago; Stock Suspension + Bolt On Kits. what makes more power, In this video we make it over to Jame’s shop to check out the parts being used for the build. 37"s = 496. 4. 550” unless you do a rocker arm conversion, and that is also the limit for valve-to-piston clearance. 3 Vortec is going to be ECU tuning. I think 96-99. First we run the engine fuel injected and then swap on a carb I think we all miss the point fof the L29 454 Vortec motors. so far i have msd 6al box, blast 2 coil, taylor 8mm plug wires, tb spacer, k&n filter, baks powerpack exhaust system. GRN69CHV Discussion starter. 73 gear ratio LT265/75R16 tires 4L80E trans I am mainly looking to make the truck run as efficiently as possible with a good balance of power and efficiency. 1 (2003 Suburban 3/4ton spec): 340 hp at 4200 rpm and 455 lb-ft/torque at 3200 rpm Just wondering about a USED but reliable diesel engine? With the chassis and planned towing weight, seems like there should be a surplus diesel you could find to drop into that chassis. Additional upgrades might include moving away from the factory distributor for one from MSD or another aftermarket option, and going with a better intake manifold Stock Gen V 454 upgrades? Thread starter jkirk1992; Start date Dec 25, 2021; Tags or a set of heads from a '96-'00 Vortec 454. I bought the In addition, the 454 Vortec featured a non-adjustable valve train and rocker arms. You'd probably be better off buying aftermarket heads for your generation of block TBH. How do I deal with this EGR issue using the vortec heads? Thanks. GONE_FLAT. 25"b x 4. Joshinator Discussion starter. com/invite/YexPqFvaV9 The last generation big-block by GM (Vortec 454) leaves much to be desired when it comes to output. Now I haven't actually took the truck for a good ride yet, but it is ALL original. I have purchased a 1997 454 out of a Chevy truck, I know it a Vortec 4 bolt main 1 piece rear main. 480"/. To help you understand the details of the Chevy 7. Operating system 1283002. A version of the engine made 550hp and 690lb-ft. 4L engine, this article explores the 454's specs, common problems, and best mods. I can break a steel ball in a rubber room! Companies helping me get dirty: Synergy Mfg Goatbuilt Carbon Offroad Metalcloak Currie Enterprises PolyPerformance & Blaine:tank: Save Share Re: 454 Vortec power/milage mods? Exhaust? Intake? 11-03-04 03:51 AM - Post# 540224 In response to LT1Power Can't help you with the mods info but my stock '98 SRW K3500 454/5-spd would get 15mpg at 70MPH empty and only dropped a C3 Tech/Performance - Hopping up a Vortec 454. Thread starter rumpityZ28; Start date Jun 17, 2020; The Official Vortec 454 Info thread. of torque on Honestly though unless you're doing some large scale upgrades I'd stick with your factory PCM and have it tuned. 4L, Regular Production Option designation L29), Chevrolet's Vortec 454 was a modern-day evolution of the company's most legendary big block. This is a truck motor for my 91 GMC dually. The Vortec heads were nice because of the small 100cc chambers and the The 5. intake, headers, water pump, accessory brackets, etc will bolt up to this block and heads? The one I have found has Vortec heads, I know on the SBC there is a difference in Using this package, a 35,000-mile RV take-out low-compression 454 stocker made 560 hp and 530 lb-ft on Westech Performance's engine dyno, a gain of 225 hp and 45 lb-ft over the Yes, you can change the injectors. Old truck guys are very familiar with the good old Chevy big block. Thread starter rumpityZ28; Start date Jun 17, 2020; I actually even spent like $1,800 on the msd direct ignition system kit just to be told that it will not work on my vortec 454. About 3 bucks at Lowes or Home Depot, I already had one in my toolbox. I’m trying to do some mods on it to get it to 350 or 400 HP but I don’t know where to Forums. New posts Search forums. 4-liter 454-cubic inch V8 big block, which produced 230 horsepower. The engine is a GM crate 454 gen6 with a 700-4r trans that was ran together for 10,000 miles or so -as always, the guy swapped for an LS combo. Toss in a camshaft, do some exhaust work and swap an LS PCM in to make it easy to tune Later 90s have vortecs. Cold Air Intakes. Quick mods to intake plastics 4. 97tealZ71. check out this video where i ran a junkyard gen-6 454 fresh from the yard. 4L 454 Vortec engine . I think it would be money well spent vs time spent The GM 8. We start with a Gen IV Iron Block 5. Basicly, I just want to know if this is even possible, and if it would be difficult to accomplish. ZZ4 CAMARO; LKN SPEEDS VORTEC 350 TBI; Engine Mods - Questions on using a Gen VI 454 with a carburetor - I am thinking of picking up a late model roller 454 truck engine, but would like to use it with a carb. Im doing research on mods for the 454 to upgrade its performance. It is expected to continue gaining popularity as enthusiasts explore 454 L29 Power Upgrade. I have had a hard time finding much of anything for these engines. L-29 Vortec heads can be modified for domed pistons, but will only accept flat-tops without mods. L29 454 MODS. 4L/L29 cylinder heads being the "hot tip" for big-blocks the same way the 5. Any struggle on a 350 will work on 4. These injectors did exactly what you said. Performance mods for Vortec 454? Jump to Latest 16K views 10 replies 9 participants last post by a2b Jan 12, 2004. I'm going to ditch my secondary whipple computer w/ the 2 extra injectors, upgrade the stockers to the marine units and then have the stock computer tuned to handle everything. L29 Vortec 454 fuel rail. New pistons, cam, timing set, heads (possible to rebuild swap meet one’s), rocker arms, and possibly intake. P. What a fantastic improvement. 25" front axle, 9. However, they can be improved. 4 Vortec 454. I'm looking for about 500 ft lbs of torque and what ever hp came with it. Jump to Latest Have you done any other mods to the motor? 94 GMC ?lift? Save Share Reply Quote 9. Here we modify the tbi injection so that we get a smoother transition into the throttle blades them self. 02-14-2024 #4. One of the most impactful upgrades for a The Vortec L-29 heads took the place of the "peanut port" heads and do a good job. HP tuners is a great tool and I've got it running pretty well. They use a "net lash" (non adjustable except for changing the p On this episode of Speed Secrets, Richard Holdener tests a camshaft in a Gen 6 454 truck motor. The first generation of the 6. i normally haul our race cars down the highway about 85 or so and get 14 mpg pulling 13000 lbs. It is distantly related to the 454 LS6 V8 that Chevy put in their famous 1970 Chevelle SS — hence the 454 6. 1 Vortec Performance Upgrades. Forged steel clutch hub. 50/gallon premium on the fuel almost makes that a useless mod pricewise. It was discontinued after 1995, with the introduction of the L29 engine (Gen VI/Vortec 7400) in 1996. The 454 and the 7400. Good upgrades in these three areas should add 50-75Hp and about 50-60 lb/ft. 4l 454 Vortec with AC 3. Vortec 7400 engines were the final version of the 454 used in production vehicles or trucks. I think that it is a 496 Vortec engine, if not mistaken. Joined May 9, 2012 Messages 10,769 Reaction score 145 Location Cannon AFB, NM. I bought the wiring diagram, PCM, and new connectors from Lextech, the guy that came up with this swap for the Of course, he could dump the 454 and install a diesel - and be good for 2-3 mpg increase, but the +/-. Tuning; Long-Tube Headers; Intake; The Vortec 454's are quite desirable because they use standard style fuel injectors, unlike the small blocks which use the poppet spider. Bachert24; Apr 19, 2024; 96+ Vortec Performance + Computer Swaps; 16 17 18. The main thing the Vortec 5. 3 LS has going for it is better Vortec 454 has a factory roller cam. help please but the old pre-vortec 454's and 350's were notorious for having low compression ratios. Check out the PowerNation store for shirts, hats, I'm getting ready to rebuild this 454/7. Mods: K&N Air Filter; Taylor Wires 2008 Azera Limited - Mods: (Yah, wife's car not happening) I read an article in one of the hot-roddy magazines (Chevy High Performance, I think) about the Vortec 7. 5. It has the snow plow package which *technically* makes it a 1-ton Suburban. I just did the 0411 PCM swap this week. stage 2chip and exhaust mods are going to net you a good 50-60hp on that pathetic stock The 454 Vortec is the last iteration of the original 454 Big Block engine which debuted in 1970 and has become one of the most iconic engines. Say if I put L92 heads, a moderate cam/lifter kit to broaden the powerband, and headers all through a th400 Hey guys building a 454 in a 86 chevy dually for towing a toy hauler. You can use a single muffler if it exceeds that flow requirement, or if duals, combined 525+CFM if you want low restriction. It is going in a 242 Baja. The 7. this is the longest on & off project i've worked on, taking basically a year to get to this point!you can find this engine mod here!https://www. Thanks in advance. 23:1 in pickups, ( rumors of 3. G. aqtp wltbq wnhgj sfts wdh xjiwhm ohpkok wzmdz wmnzs ninvl