5750-H Callies Compstar 5.7 Hemi 397 Stroker Rotating Assembly 9.25:1 CP Forged Pistons

Callies Compstar Gen III 397 5.7 Hemi Forged rotating assemblies are designed to support engine builds up to 1250 horsepower

Callies Compstar 4340 forged steel crankshaft 4.080 Stroker crankshaft
Callies Compstar Forged 4340 steel H-Beam rods with 7/16" ARP2000 rod bolts, 6.125 Length
CP Bullet 2618 Forged pistons
CP piston ring set, 1.5mm steel gas nitride top rings, 1.5mm Napier second rings, 3.0mm oil rings, good for boost or nitrous
Standard Heavy-duty .200 wall wrist pins
H series performance rod bearings and main bearings and thrust washer
Rotating assembly kit has been Internally balanced in-house by CNC-Motorsports
Compression Ratio with 85cc heads: 9.25:1:1
*5.7L up to 2008 use 32 Tooth Tone Ring, 2008 and present use 58 Tooth Tone Ring
Engines equipped with variable valve timing (VVT) require a spacer behind crank gear.
*Note Standard bore size for 5.7L (3.917), 6.1L (4.055) and 6.4L (4.090)