S&S forged .060 piston set for stroker flywheels. S&S stroker forged .060 piston set is machined to fit both 4-3/4 & 4-5/8 stroker flywheels. Piston set includes rings wrist pins and retainers. When used with 4-3/4 stroke compression will be 8.25:1 with 4-3/4 stroke compression will be 9:1. **Note: Remember that an 80 3-1/2 standard bore equals 3-7/16 +.060 bore size. **Note:Run Engine at moderate speeds for at least 500 miles avoiding excessive running in lower gears in order to properly break-in new pistons and rings.
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