L29 7.4l mileage and tow build

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WebCOMPLETE longblock buildup of the L29 Gen VI 454. In this video James takes us through the motor build from short block all the way to long block. There is a lot of good info in … WebMar 9, 2012 · The last one was a 489 with a 2.68/1 gearbox on the back and this one is going to be direct drive so the engine will not be operated above 3200 RPM ever. I want to see what this thing will do Low budget so I am picking up a 2000 L29 Vortec 7400 or 7.4L/454 and plan to use it stock.

How to Resurrect a Dead Big-Block Chevy Vortec 454 (L29) Engine

WebThe Vortec 7400 (L29) big block V8 engine uses sophisticated technology to provide impressive horsepower and torque output, and long intervals between recommended service. The big block mill puts out some 290 horses at 4000 rpms and an impressive 410 lb.-ft. of torque. WebJul 18, 2016 · Oval port intakes. 4 bolt main caps. I measured the combustion chambers at 100cc. Using a CR calculator puts this cr at 9.4:1. This thing seems like it should make big … buick plant

Chevy Performance 454ci L19/L29 Truck Crate Engine - JEGS

WebJul 1, 2015 · Not only did the cam swap net an additional 52 horsepower (peak-to-peak), but the gains exceeded 80 hp higher in the rev range. Even better than the big peak gains was … Web1998-2000 Chevrolet and GMC Pickups and SUV’s with 7.4L Vortec Engine (L29) (May require Passkey and Crankshaft Relearn Procedure; Description: The GM 7.4L UltraPower ECM has long been the ultimate performance … cross linked polyolefin foam tubing

Chevy Performance BBC L29 Vortec Cast Iron Cylinder Head - JEGS

L29 (Vortec 454) in Square? - The 1947 - Present Chevrolet & GMC …

WebAfter it settled in from the initial throttle hit just like the first dyno graph the torque number settled in about 355lbs or so at the rear wheels or (473lbs at flywheel) which is dramatically better than the stock pull of 265lb and even the chipped dyno numbers of 290lb for a 25% increase in torque which is most definitely apparent when driving … WebBluePrint Engines Pro Series Chevy 502 C.I.D. 621 HP Dressed Long Block Crate Engines PS502CTC. Crate Engines, Pro Series Chevy 502 C.I.D. 621 HP Dressed Long Block, … cross linked polyolefin jacketWebDec 18, 2003 · Even though the L29 can't match the optional 6.5-liter/190-horse Turbo-Diesel's 430-pound-feet torque peak, diesel Suburbans fall more than a ton behind the big … crosslinked polyolefin foam

"WebSep 14, 2015 · The heads used on the L29 combined the large oval intake ports with small (100 cc) combustion chambers to produce a slightly higher (than the Gen V) 9.0:1 … " - L29 7.4l mileage and tow build

L29 7.4l mileage and tow build

GM 7.4 Vortec Ultimate Engine Guide - Specs, Problems, Performance

WebAug 2, 2024 · 1997 Chevrolet K2500 ECSB, 0411, 454, headers w/ Exhaust, MSD, 28lb injectors "Biggin". My 2000 C2500 is an L29 Vortec 7.4L.. Black box ECM, which is supported. I've been using HP on it for about 3 years. New to the forum though. I am in need of a little advice to perfect some things after a ZZ502 cam swap. Not to steal you're … WebDec 9, 2015 · The 1999 L29/4L80 was basically a bolt in with a small crossmember modification and a new driveshaft. Uses stock 72 mounts, stock accessory drives, headers etc. There is the PCM and wiring to do just like an LS install. 72 Concours Wagon Team Chevelle Gold Founding Member #42 R Robinls5 Premium Member Joined Mar 21, 2005 …

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WebThe Chevrolet 454-cubic-inch, or 7.4-liter, V-8 engine was an extremely powerful gas guzzler that should have remained obscure after the 1973 oil crisis. It was utilized in both … WebThese Chevrolet Performance 454ci/7.4L Engines are designed as a stock replacement, providing the big torque you need for pulling a trailer or other heavy loads, for 1980-2000 Chevy/GMC trucks, SUVs and vans. These engine assemblies are built to the same exacting engineering standards that go into every new GM vehicle.

WebJul 13, 2015 · 4.56s raise that to 2,467. In case my tire assumption is wrong: 215/85-16 + 3.73 = 2,098 @ 65 (nearly exact match for 245/75-16) 225/75-16 + 3.73 = 2,192 @ 65. The Vortec 350 (L31) produces 255 hp at 4,600 rpm and 330 lbft of torque at 2,800 rpm. That last number, the rpm of the torque peak, is the key to towing. WebAug 1, 2013 · Big Block Chevy Tow Build. I've noticed a few threads on tow builds before, so I thought I would share one I did recently. 496 4340 Scat crank, 6.385 rod, with a flattop piston, zero deck, I used a 049 head, bronze guides, installed a 1.750 CHE valve seat, used a 1.720 exhaust with a .098 wide 45 degree seat, 2.190 intake valve, very mild ...

WebOct 6, 2005 · The 7.4 454 big block is a good pulling engine, great power and usually paired with a 4.10 rear, which would pull your house down. I used one in a 1990 GMC 3500. Like bluenote said very thirsty, 7--9 mpg WebSep 8, 2024 · go with the l29 heads go qjet. use the factory t body fuel pump with a return style regulator. the throttle body normally operates at 9 to 13 lbs. keep the lca tight 108 and the duration small such as 260 adv. It will be a torque monster R Randy 67EC Premium Member Joined Feb 7, 2006 900 Posts #3 · Sep 7, 2024

WebFind CHEVROLET 7.4L/454 Engine Rebuild Kits and get Free Shipping on Orders Over $109 at Summit Racing! Stock up on Stock Replacement Parts! Vehicle/Engine Search …

WebSep 8, 2015 · 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 … cross-linked polyolefinWebJan 22, 2024 · It was available from 1958 to 1961 (through 1964 in trucks). The 348ci is 3 inches wider and 1.7 inches longer than the 265/283ci small-block of the time. 409ci: The 409 was introduced at 360 hp ... crosslinked pvdfWebSep 16, 2015 · There is a bunch of info on the l29 engine on one of the chevy truck boards. They have a couple of injectors that will work listed in the thread about the l29. One truck did have the dist gear problem around 260,000 miles. -John i … buick pittsburgh paWebAug 25, 2015 · As good as the $500 454 is, the stock L29 truck motor (circa 1999) was originally rated at 290 hp and 410 lb-ft of torque. In addition to the displacement, the 454 offered a number of desirable features that made it ideal for future forced induction. buick plano txWebAug 31, 2016 · In terms of towign strength: 8.1 > 7.4 > 6.0 Fuel mileage is 6.0 > 8.1 > 7.4 All drive nice empty. The 8.1 gets the 85E as opposed to the 80E in the other two, its a … cross linked pva glueWebDec 9, 2024 · First step was to hook up a battery and turn the key on the old truck. We popped a Duralast Platinum Battery AGM Group Size 78 with 740 CCA ($194.99 with an … buick pittsburghWebFor 1980-2000 Chevy/GMC trucks, SUVs and vans with a VIN build code of L19, L29 or LE8. Features: 4-Bolt Main Cast iron block; Cast, externally balanced crankshaft; Cast steel … cross linked poly tanks