Callies Compstar 4340 forged steel crankshaft
Callies Compstar forged 4340 steel H-Beam rods with 7/16" ARP 2000 rod bolts
Forged Mahle 4cc Flat Top pistons with performance ring set
Premium rod and main bearings.
This Rotating kit has been Internal balanced in house by performance plus.
pistons availiable in 4.005 and 4.030 58 and 24 tooth availiable
Compression Ratio with 66cc 11.4:1