My 510" IA2, 3.25" main, 2.100" rod, 4.375" stroke crank, aluminum 6.80" rods goes through the traps at 7700.
We just took it apart, the bottom end looks good.
The reason we went with this crank is because it is a forged Moldex from many years ago. We had it in our old factory block when we were running mid 9s at 3200 lbs.
We then purchased a 3.25" main IA2 because we had the crank for it.
This winter we will be stepping up to an Ohio forged crank. 4.5" stroke, 3.25" main and 2.200" rods. We are going with new rods and pistons as well, going from a 4.31 piston to probably a 4.32. Should be about 527". Should still go through the traps at at least 7500 RPM.
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1978 Pontiac Grand LeMans.......out next year
Previous - 2001 Jerry Haas-built P/S Grand Am - former WJ car, Hoffman Racing 535" IA2, Tiger Heads/Intake, Single Dominator, PG
Best ET: 7.776 @ 175.94, 1.096 60', 2375 lbs.
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