SPH132CP 030 - SPEED PRO PISTONS 351/393W STROKER

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 minimise 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: 393
• Bore: 4.030
• Stroke: 3.850
• Rod Length: 5.960
• Compression Height: 1.615
• Compression Ratio with 58cc chamber volume: 10.68
• Compression Ratio with 60cc chamber volume: 10.43
• Compression Ratio with 63cc chamber volume: 10.15
• Dome Volume: -15.0cc
• Pin Type: Press Or Float
• Recommended Ring Set: Moly - SPR8902 030, STD Fit - SPR9902 030, File Fit - SPR9771 035
• CNC Machines, coated piston