L29 454 dyno

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Oct 01, 2005 · We take the Vortec big-block from this 1996 Chevy truck dually to Superior Automotive to have the heads flowed and ported and more, only on sporttruck.com, the official website of Sport Truck ... is most apparent in the Vortec 454. The Vortec 454 was touted as having substantially more power. This is a lie. The Vortec enhancements simply allowed GM to pass smog at a higher RPM. The old, weak 240 HP 454 is every bit as strong as the new, high power 290 HP Vortec 454. So, perhaps in an attempt to get more low-end torque for This 1998 L29 Vortec Big Block harness is for the torque connoisseur. This application did not require us to run full emissions, so only the vital engine running condition sensors were used. This SSW wire harness is built from scratch with GM connectors, terminals and seals. The Vortec for this year has four HO2 sensors … Re: 454 Vortec power/milage mods? Exhaust? Intake? 11-19-04 06:35 PM - Post# 540230 In response to LT1Power I just replied to another post regarding the 350 CI and told him to check out www.bankspower.com for their information, it gives power gains as indicated by dyno runs for each step they took in developing a performance kit. I am not ... The following tests were run with the COMP Cams new Flat tappet Thumpr camshaft on the Westech dyno over three days in late December. The base engine was a time-tested 350cid 290 horsepower small block GM crate engine featuring a Weiand Air Strike intake manifold, 650cfm Holley carb, Hedman 1 ¾-inch primary tube headers, Magnum mufflers with 18-inch collector extensions and an HEI distributor ... May 24, 2012 · This rebuild of the Chevy 454 is for all the ham-n-egg'ers out there. Check out the build from start to finish only at carcraft.com or the July 2012 issue of Car Craft Magazine. Run on the dyno with long-tube headers, the peanut-port 454 produced 334 hp at 4,300 rpm and 448 lb-ft of torque at 3,500 rpm. Besides, the junkyards are full of Gen-V motors just begging to be pulled and transformed. With torque production in mind for a heavy truck or towing application, we decided to see just what the peanut-ports had to offer. Re: 454 Vortec power/milage mods? Exhaust? Intake? 11-19-04 06:35 PM - Post# 540230 In response to LT1Power I just replied to another post regarding the 350 CI and told him to check out www.bankspower.com for their information, it gives power gains as indicated by dyno runs for each step they took in developing a performance kit. I am not ... Sep 14, 2015 · 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 compression ratio. Re: L29 Vortec 454 power? Post by user-612937456 » Sat Sep 24, 2016 9:32 pm There are a night and day difference between a 3.73 and a4.10 ratio then if it has 285r85's or 305's with the3.73's that kills the power I know caus I have had both trucks plus the 4X4 compounds the effect Vortec L29 454 290 hp 410 lb/ft torque The Vortec 454 uses 8 24 lb/hr fuel injectors that are sequentially fired. Both engines can benefit a LOT from higher flow cylinder heads and cams. Run on the dyno with long-tube headers, the peanut-port 454 produced 334 hp at 4,300 rpm and 448 lb-ft of torque at 3,500 rpm. Besides, the junkyards are full of Gen-V motors just begging to be pulled and transformed. With torque production in mind for a heavy truck or towing application, we decided to see just what the peanut-ports had to offer. Re: L29 Vortec 454 power? Post by user-612937456 » Sat Sep 24, 2016 9:32 pm There are a night and day difference between a 3.73 and a4.10 ratio then if it has 285r85's or 305's with the3.73's that kills the power I know caus I have had both trucks plus the 4X4 compounds the effect Feb 25, 2016 · The longer lines on the graph are a full pull with the two inch dyno headers. The pull started around 1,500 rpm and finished just shy of 6,000 rpm. The bold lines are a shorter pull with the Hooker Competition headers. You can see that torque (blue lines) was down in the lower rpms, but then climbed to a best peak of 702 ft.-lbs. at 4,400 rpm. The Vortec 7400 L29 7.4 L (454 cu in) V8 was a truck version of the Chevrolet Big-Block engine. Introduced in 1996, it was produced for five years, until replaced by the Vortec 8100. Although introduced as the Vortec 7400 in 1996, it was basically a 454 Big-Block with a hydraulic roller cam , parts more suitable for use in light duty trucks ... This 1998 L29 Vortec Big Block harness is for the torque connoisseur. This application did not require us to run full emissions, so only the vital engine running condition sensors were used. This SSW wire harness is built from scratch with GM connectors, terminals and seals. The Vortec for this year has four HO2 sensors … Run on the dyno with long-tube headers, the peanut-port 454 produced 334 hp at 4,300 rpm and 448 lb-ft of torque at 3,500 rpm. Besides, the junkyards are full of Gen-V motors just begging to be pulled and transformed. With torque production in mind for a heavy truck or towing application, we decided to see just what the peanut-ports had to offer. Find CHEVROLET 7.4L/454 Crate Engines and get Free Shipping on Orders Over $99 at Summit Racing! 467 CU IN, 570 HP, 580 TQ, 9.6-9.7 compression, 232 @ .050 hyd cam, rough idle, enough vacuum to run power brakes. Excellent muscle car replacement. Sold intake to pan, balancer to flexplate. 6295.00 Re: L29 vortec BBC heads on markIV block 08-13-06 05:27 PM - Post# 984406 In response to Jay727 I ran the Vortec BBC heads on my 454 with a ZZ502 roller cam and an oval port PRM air gap intake. I used the ARP conversion studs with Harland Sharpe roller rockers and factory guide plates. They worked pretty well for the moeny I had into the engine. Oct 04, 2020 · The Procomp bbc heads are perfect for 427, 454, 496 and 540 street/strip engines. These are what we use on our 505 and 555 bbc engines. They will produce up to 680 hp with the proper cam and intake manifold on pump gas. This is an outstanding trouble-free set of heads. Fully built, ready to install. Intake Exhaust. Valve Opening CFM Valve ... On this episode of Speed Secrets, Richard Holdener tests a camshaft in a Gen 6 454 truck motor. First we run the engine fuel injected and then swap on a carb... I have a 2000 C3500 with the 454/L29 and auto trans. The previous owner had the engine rebuilt in 2012 and tells me they installed an RV cam but I am not sure which one. I have the parts list and see one item called 01-412-8 hyd roller cam for $315. They also installed roller lifters, heavy springs and chain/gears. Features and Benefits: Edelbrock’s Pro-Flo 4 EFI comes in a traditional 4150-style throttle body or an XT-style throttle body with a plenum for small-block Chevy, big-block Chevy, small-block Ford, big-block Ford, small-block Chrysler, big-block Chrysler, and Gen III/IV LS applications. Maximum revolutions per minute is 4,200 to 4,600 rpm. Idle rate is 600 rpm in neutral. The eight cylinders fire in a 1-8-4-3-6-5-7-2 sequence. The 7.4 multiport injection model has 310 propshaft hp and 231 propshaft kilowatts. The 454 Mag multiport injection model has 385 propshaft hp and 287 propshaft kilowatts. Final dyno numbers came in at 551 horsepower at 5800 rpm and 586 lb-ft of torque at 3600 rpm – results that will plant you right back in the seat when the right foot comes callin’, and not suck your pocket completely dry at the pump, thanks to the measly 87 octane fuel requirement. The dyno will reveal the answer. Plus, a trip to the annual NHRA Hot Rod Reunion in Bowling Green, KY. It's Chevy's turn as Mike and Joe build a classic 454 big block engine on a skimpy budget of 25-hundred dollars. My L29 is a 98 Suburban K2500 7.4L, It would be interesting to see the difference between truck and Suburban. I haven't had much time to spend learning and programming lately, but removing most of the torque management and adjusting a couple of timing points made a hugh diffference in performance and gas mileage, but I haven't even checked mpg yet. I have a 2000 C3500 with the 454/L29 and auto trans. The previous owner had the engine rebuilt in 2012 and tells me they installed an RV cam but I am not sure which one. I have the parts list and see one item called 01-412-8 hyd roller cam for $315. They also installed roller lifters, heavy springs and chain/gears. Our Chevy 454 Long Block Engine is on sale. This 7.4 liter engine is commonly known as the "454 Big Block". In 1970 the 454 was first introduced for use in the Chevy Corvette, soon after it's use extended to a long list of GM and Chevy applications. 454 motors have withstood the test of time and have been in production for four decades and ended in the early 2000s with their Generation 5 model. Find CHEVROLET 7.4L/454 Crate Engines and get Free Shipping on Orders Over $99 at Summit Racing! This 1998 L29 Vortec Big Block harness is for the torque connoisseur. This application did not require us to run full emissions, so only the vital engine running condition sensors were used. This SSW wire harness is built from scratch with GM connectors, terminals and seals. The Vortec for this year has four HO2 sensors …