Speed Pro CHEV/ HOLDEN LS2 PISTONS 4.000" BORE, .945" PIN, 1.325" PISTONS - H857CP (SPH857CP STD)

SPH857CP STD - CHEV/ HOLDEN LS2 PISTONS

364 c.i., 4.000" bore, 3.622" stroke, 6.098" rod length, -7.0cc dome volume

Part Number: SPH857CP STD

These ruggedly durable pistons are made with exclusive high strength FM425 alloy, and enhanced with 16.5% silicon for excellent tensile strength and scuff resistance. This advanced metallurgy permits tighter bore clearances, which help minimize noise on cold engine start-up. These pistons are the ideal choice for street performance applications and late-model replacement.
More Sealed Power hypereutectics benefits:
Higher strength than cast or forged at operating temperature
Finely dispersed silicon particles provide a highly resistant wear surface and reduces scuffing
Lower material growth allows pistons to be fit tighter, improving cylinder sealing for less blow-by and more power
High silicon content allows elimination of groove inserts in certain applications
Designed to retain standard ring gaps in the top groove
Piston Specifications :
CID: 364
Bore: 4.000
Stroke: 3.622
Rod Length: 6.098
Compression Height: 1.325
Compression Ratio with 64.5cc chamber volume: 11.09
Dome Volume: -.007cc
Pin Type: Press pin
Recommended Ring Set: Moly - SPR10603 5