331 Mahle PowerPak Forged FLAT TOP Pistons with Rings
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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.
- 1.165 Compression Height
- -6.5cc Flat Top
- .927 Pin
- For 3.250 Stroke / 5.400 Rods
- 1mm 1mm 2mm File Fit Moly Ring Set
- Inline Valve Relief
- Bore Options - 4.030, 4.040
- Available in 4032 or 2618 Forging for Inline Heads
- 4032 Forging Only for Twisted Wedge Heads
- Grafal Coated Piston Skirts
- Dry Phosphate Coated
- 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
- 930245430, 930245440, 930244530, 930244540, 930250130, 930250140
