331/347/363 Mahle PowerPak 2618 Forged +7cc DOME Pistons with Rings

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.

1.090 OR 1.165 Compression Height 

.927 Pin

4.030 Bore or 4.125 Bore for 1.090 ONLY 

+7cc Dome

Inline Valve Relief Only

Grafal Coated Piston Skirts

Dry Phosphate Coated

NEW 1mm, 1mm, 2mm File Fit Moly Ring Set

Hand Deburred

Pin fitted German steel pins noted for their high strength, light weight and durability

Round Wire Locks

CNC Machined Piston Crowns

Forced Pin oiling with Machined Oil Drain backs