crank stroke use with block final cu in rod length w 030 block ... balancing prior to assembly · 383 chev cranks with 2 piece rear seals should ... be assembled using a 400 chev harmonic balancer and flexplate or ... flywheel · 383 chev cranks with 1 piece rear seals should ... be assembled using a 400 chev harmonic balancer and a 350 chev ... piece balancer/pulley assembly small block chevrolet stroker cranks all of the ... stock replacement type bearings small block chevrolet stroker cranks 3.500 400 6. ...