WebEngine Specifications 1970 LS5 with 4 Barrel Carb Max Brake Horsepower: 360 @ 5400 rpm (Chevelle) 390 @ 4800 rpm (Corvette) Max Torque: 500 @ 3200 rpm (Chevelle) 500 … WebSuitable for towing, the Chevrolet Performance Big Block Chevy L29 Vortec Cast Iron Cylinder Head was used on 1996-2000 GM trucks/vans/SUVs with 7.4L 454 engines. Small 99cc combustion chambers allow the compression ratio to be raised one full point over most stock 119cc chambers & large oval ports flow better than other factory oval …
How come nobody is building the L29 vortec 7.4 454...
WebUltraPower 7.4L ECM Benefits: 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. Disabling of emissions systems … http://www.hcdmag.com/chevrolet-454-engine/ lastenlääkäri mehiläinen turku
How to Pick Up Big Power On a Junkyard 454 With a …
WebAug 20, 2024 · In this guide, we discuss Chevy 454 engine specs, performance, reliability, upgrades, and more. *Our primary focus in this article is the original 454 big block … WebFind CHEVROLET 7.4L/454 Chevy big block Gen VI Crate Engines V8 Engine Type and get Free Shipping on Orders Over $109 at Summit Racing! WebJul 9, 2006 · The exhaust port is excellent--among the best of the GM ports. The intake port has a swirl-inducing "ski jump" that kills flow. The L-29 heads are good for about 20--30 hp over round ("peanut") port heads--and some of that increase is due to the higher compression because of the smaller chamber in the L-29 head. atkinson keene