crankshaft

[mybuick]

are a 4 years the same crankshaft (84-87) :fragez:

[KendallF]

are a 4 years the same crankshaft (84-87) :fragez:

The rolled fillet crankshafts were the same at least as far back as 83; maybe earlier. If it's got fillets on rods and mains, use it.

[gasketmaster]

The rolled fillet crankshafts were the same at least as far back as 83; maybe earlier. If it's got fillets on rods and mains, use it.

The only difference is the thread size for the balancer bolt.I believe there was a 5/8" and a 3/4" hole.The crank with the 5/8" hole is the earlier piece.

[HairDrier]

The TTA cranks are cross drilled for better lubrication

All 4.1 blocks have rolled fillet cranks also I believe