Mahle Pistons Aluminum Power Pack Ring & Piston Set L92
Part Number: MAH-930225025
Free Shipping: W/$250.00+ Order
Shipping Weight: 6.00 pounds
The Mahle PowerPak is a complete, race proven piston assembly kit composed of hand deburred, forged, performance coated pistons, high-quality steel pins, round wire locks and low drag performance rings. Performance coatings include a phosphate dry lubricant that is used to protect against ring micro-welding and pin galling during initial startup and break-in. For additional performance, Mahle applies its proprietary Grafal anti-friction coating to each piston skirt.
Inverted Dome Pistons
1.5, 1.5, 3.0 mm Rings
Cubic Inches: 428
Rod Length: 6.125"
Compression Height: 1.105R
Pin Diameter: 0.927"
Crown Volume: -25cc Inverted Dome
Compression Ratio @ 70cc: 9.3:1
Forged Aluminum Pistons
CNC machined crown
Hand deburred finishing
Forced pin oiling with machined drain backs
Lightweight slipper skirt forgings
CNC finished pin bores
Forced Pin Oiling
Race Proven, reliable round wire locks, standard with every kit
Pre-fitted German steel pins noted for their high strength, lightweight, and durability
Phosphate coating - provides the grey appearance to the Mahle piston. This dry lubricant coating (not to be confused with a thermal film coating) provides a lubricant film in the pin bores and ring grooves until the oil system of the engine reached operating pressure; particularly useful during the initial start-up or break-in of engines to protect against galling and micro welding. Piston crown remains machineable.