Speed Pro 350 ci SB Chev - Flat Top Hypereutectic Pistons (SPH345DCP 040)

SPH345DCP 040 - CHEV 350 FLAT TOP PISTONS

357 c.i., 4.040" bore, 3.480 stroke, 5.700" rod length, -5.0cc dome volume

Part Number: SPH345DCP 040

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: 357
Bore: 4.040

Stroke: 3.480
Rod Length: 5.700
Compression Height: 1.548

Compression Ratio with 58cc chamber volume: 10.84
Compression Ratio with 64cc chamber volume: 10.10
Compression Ratio with 76cc chamber volume: 8.92
Dome Volume: -6.9cc
Pin Type: Press or Floated

Ring Size: 5/64" - 5/64" - 3/16"

Recommended Ring Set: Cast - SPE251X 040, Moly - SPE251K 040