| 					 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: 347
 - Bore Size: 3.905
 - Stroke: 3.622
 - Rod 6.125
  
Compression Ratio:
 
- 66cc: 8.7
 - 64cc: 8.9
 - 72cc: 8.3
  
*Image shown is a representation, actual product may vary. 
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