Speed Pro 302W ci SB Ford - Flat Top Hypereutectic Pistons (SPH146CL 030)

SPH146CL 030 - FORD 302W 347 STROKER PISTONS

347 c.i., 4.030" bore, 3.400 stroke, 5.400" rod length, .927 Pin -5.0cc dome volume

Part Number: SPH146CL 030

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: 347
Bore: 4.030

Stroke: 3.400
Rod Length: 5.400
Compression Height: 1.090

Compression Ratio with 58cc chamber volume: 10.47
Compression Ratio with 60cc chamber volume: 10.20
Compression Ratio with 63cc chamber volume: 9.90
Dome Volume: -5.0cc
Pin Type: Press or Floater with tapered pin
Recommended Ring Set: Moly - N/A, STD Fit - SPR9968 030, File Fit - SPR9342 035

CNC machined, lightweight, coated skirt