Forged 8:5:1 Compression Piston Kit - Wiseco K1640 - Evolution 1984-1998

Wiseco #: K1640

Wiseco 80 inch Evolution flat top piston kit standard size. Piston kit has a compression of 8.5:1 compression and includes rings.

**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.

Fitment:

Installation instructions (PDF)