RacerX Posted April 19, 2002 Share Posted April 19, 2002 . Quote Link to comment Share on other sites More sharing options...
fl327 Posted April 19, 2002 Share Posted April 19, 2002 LT4 is vette version of LT1, bigger cam, more flow, mo power. LT5 is the all alluminum quad cam with the variable venturi intake thats more LOTUS than chevy. Quote Link to comment Share on other sites More sharing options...
Mike C Posted April 20, 2002 Share Posted April 20, 2002 Only available in the ZR-1 Corvette or as a really expensive crate motor, there was never a big demand for aftermarket parts since most ZR-1s were bought by collector types. (Not all, I've got a friend who road races his in the Houston area.)There are aftermarket parts like cams and exhuasts, but they are STUPID expensive. Quote Link to comment Share on other sites More sharing options...
fl327 Posted April 20, 2002 Share Posted April 20, 2002 thats true. crate motor is 14k long block only. Quote Link to comment Share on other sites More sharing options...
Guest Will Posted April 23, 2002 Share Posted April 23, 2002 Specifically: LT4 has raised roof intake ports in cylinder heads Matching intake manifold (powder coated red) More radical cam hollow intake valves sodium/potassium filled exhaust valves spiral wound oval wire valve springs undercut rolled fillet crank journals 6300 redline rated at 330 HP closer to 350 HP Quote Link to comment Share on other sites More sharing options...
Danno74Z Posted April 24, 2002 Share Posted April 24, 2002 Go to this site for a very detailed look at the differences between the two engines. http://home.tir.com/~steveher/lt4.html Danno74Z Quote Link to comment Share on other sites More sharing options...
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