350 ci SB Chev - Flat Top Hypereutectic Pistons355 c.i., 4.030" bore, 3.480 stroke, 5.700" rod length, -5.0cc dome volumeBrand: SPEEDPROPart Number: SPH345DCP 030Description: 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: 355
- Bore: 4.030
- Stroke: 3.480
- Rod Length: 5.700
- Compression Height: 1.548
- Compression Ratio with 58cc chamber volume: 10.79
- Compression Ratio with 64cc chamber volume: 10.06
- Compression Ratio with 76cc chamber volume: 8.88
- Dome Volume: -6.9cc
- Pin Type: Press or Floated
- Ring Size: 5/64" - 5/64" - 3/16"
- Recommended Ring Set: Cast - SPE251X 030, Moly - SPE251K 030
