FORD 289-302W FLAT TOP PISTON 4.060 BORE 5.090 ROD -8CC
FORD 289-302W FLAT TOP PISTON 4.060 BORE 5.090 ROD -8CC
$401.92
Description
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
Additional information
| Weight | 6.6000 kg |
|---|---|
| Dimensions | 47.00 × 24.00 × 11.00 cm |
| Category list | |
| Brand | Speed Pro |
