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BRAND | SPEEDPRO

302W ci SB Ford - Flat Top Hypereutectic Pistons 311 c.i., 4.060" bore, 3.000 stroke, 5.124" rod length, -5.0cc dome volume With 8.229 Deck

302W ci SB Ford - Flat Top Hypereutectic Pistons 311 c.i., 4.060" bore, 3.000 stroke, 5.124" rod length, -5.0cc dome volume With 8.229 Deck

SKU: SPH273CP 060 | Engine & Components
Regular price $522.82 NZD
Regular price Sale price $522.82 NZD
Sale Sold out

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: 311
  • Bore: 4.060
  • Stroke: 3.000
  • Rod Length: 5.124
  • Compression Height: 1.605
  • Compression Ratio with 58cc chamber volume: 8.71
  • Compression Ratio with 60cc chamber volume: 8.51
  • Compression Ratio with 63cc chamber volume: 8.29
  • Dome Volume: -5.0cc
  • Pin Type: Press
  • Recommended Ring Set: Moly - SPE251k 060, STD Fit - SPR9903 060, File Fit - SPR9343 065
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