| Mahle's PowerPak piston assemblies include forged pistons, piston rings, pins, and wire locks--all in one race-proven package. The pistons are hand-deburred and then coated with dry phosphate to protect against ring micro-welding and pin galling during initial startup. For additional performance, Mahle added its proprietary Grafal anti-friction coating to the piston skirts. Low drag rings, steel pins, and round wire locks complete the Mahle PowerPak package
Specs:
- Cubic Inch: 404
- Bore Size: 4.010
- Stroke: 4.000
- Rod 6.125
Compression Ratio:
- 66cc: 10.4
- 64cc: 10.6
- 72cc: 9.8
*Image shown is a representation, actual product may vary.
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