Ordered a 3.625 crank and 5.967 rods. I'm having trouble finding the correct pistons. I found a Weisco part# 5109A2, but Summit only has 3! Carrillo has the ZR231 piston I'm researching now.
ZR231 specs:
Buick Grand National 3.8L, 3.820 Bore, 3.400 Stroke, 5.960 rod, 1.835 Compression Height, -27.2cc Dish, Advertised Weight 494
ZR231 specs:
Buick Grand National 3.8L, 3.820 Bore, 3.400 Stroke, 5.960 rod, 1.835 Compression Height, -27.2cc Dish, Advertised Weight 494
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