LT1 Rotating assembly
AFRs old stuff is not very good, the Eliminators are untested, in any case you need to have them ported if you decide to follow through with this bad choice. Trickflows are the only aftermarket casting worth looking at IMO but still I think ported stock heads are the better choice for most applications.
How much are you planning to spray it and how fast do you want to go?
The 7.5" wont take much abuse behind a T56 so you are looking at a mandatory axle upgrade as well.
AFRs old stuff is not very good, the Eliminators are untested, in any case you need to have them ported if you decide to follow through with this bad choice. Trickflows are the only aftermarket casting worth looking at IMO but still I think ported stock heads are the better choice for most applications.
How much are you planning to spray it and how fast do you want to go?
The 7.5" wont take much abuse behind a T56 so you are looking at a mandatory axle upgrade as well.
Basic specs for the crank: 3.480 stroke, 5.7 Length Rods, 4.00 Bore Pistons.
Basic architecture is the same as a SBC from the 50s and mant parts are shared with previous smallblocks. It was just an interem design thrown together to make the gen 1 smallblock a little better while the LSx was under design.
A good set of ported "202 fuelie" heads from the musclecar era might flow as well as a bone stock set of LT1 heads but the LT1 heads do so with smaller valves and a better chamber and cooling allowing more compression, the engine management on the LT1 is also pretty good which allows us to run a lot of compression too and tame a fair amount of cam, the management is a big piece of what makes the LT1 so much fun and potent, really hate to see guys carb them, it is a big step backwards.


