Search results
14 kwi 2024 · Also known as the Vortec 7400, the L29 was the final and most modern iteration of the venerable big block Chevy. It was available from 1996 to 2000 in 2500/3500/3500HD trucks and 2500 Suburbans. Factory power rating was 290 HP at 4000rpm and torque was 410 ft-lbs at 3200rpm.
24 sie 2021 · These engines are spec'ed at 9.1 comp with a nominal 106cc head chamber. My chambers measured 99 to 102 cc. Assuming a head gasket thickness of .050", compression right now will be right at 9.1, even after decking the block.
19 lip 2023 · In this article we’re going to shine the spotlight on the Gen VI Chevy big block, otherwise known as the Vortec 7400 (L29 and L21) engine, and how you can go from the stock engine to something making even higher horsepower.
14 kwi 2016 · A few weeks ago I bought a very low milage 454 Gen. VI L29 Vortec engine with hydraulic roller. I have now disassembled the entire engine (except the crank and pistons) to check that everything looks good, remove all the dirt and grease and to prepare it for a rebuild.
4 mar 2019 · I have the stock 2.06 and 1.72 valves in them, small solid cam and an Air Gap. Look up Vortecpro on Peanut Port heads, Mark is the master on them. I think you can run Mark IV heads on a gen 5 block with different head gaskets.
5 wrz 2023 · Car specs are as follows: stock 454 HO (except for 9.7:1 comp and will add a 850cfm brawler I have lying around), headers, TH400 (will select new torque converter once cam choice is settled), 3.33 rear gears, weight is ~3500lbs without driver, tire height 27”, Any help will be greatly appreciated.
22 kwi 2024 · The L19 454 engine was rated at 230 horsepower and 380 lb-ft torque and found in GM’s 2500 and 3500 pickups and famously in the 1991-1993 454SS pickup model. It was discontinued after 1995, with the introduction of the L29 engine (Gen VI/Vortec 7400) in 1996.
