Tech / General EngineIs your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
What year did the 454 come out with the hydraulic roller cam??
A friend of mine has an 88 burb with the 454 but it has the older
style timing cover on it. If I'm correct, the H/R motor has the plactic
timing cover. Anyone know?? THANKS
Mk V started late 95 early 96 for the L29 vortec. just like vortec small block. better cam incremental change in compression and roller cam along with sequential injection. ended in 2000 i belive. it was replaced with the Gen III 8.1l
Gen IV is up to 1990 and is what 99% of all the aftermarket BBC stuff is based on. Mark V L19 is 91 to 95 and still uses flat tappets and was the worst design BBC GM produced. In 96 GM brought out the Gen VI Vortec engine which was a roller block.
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