3-5/8 inch replacement 88 inch Evolution moly coated piston kit is standard sized. Moly coating helps reduce friction and wear. This kit has rings for use with 4-5/8 inch stroker flywheels and has a 9.75:1 compression. Fits Evolution motors and includes wrist pins lock tabs. Features a 3.625 inch 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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