Available on both hypereutectic and POWERFORGED pistons, DUROSHIELD is an exclusive moly-graphite skirt
coating that extends engine life and essentially eliminates scuffing. This technologically advanced coating is precisely applied to the piston through a computer-controlled process.

DUROSHIELD skirt coated pistons:

• Reduce friction for increased fuel economy and horsepower
• Essentially eliminate scuffing and wear
• Prevent damage from inadequate lubrication, especially at start-up
• Improve cylinder sealing for less blow-by and more power
• Require no increase in skirt clearance

Piston Specifications :

• CID: 473
• Bore: 4.420
• Stroke: 3.850
• Rod Length: 6.700
• Compression Height: 1.752
• Compression Ratio with 72cc chamber volume: 10.93
• Compression Ratio with 77cc chamber volume: 10.45
• Compression Ratio with 97cc chamber volume: 8.91
• Dome Volume: -4.2cc
• Pin Type: Press
• Recommended Ring Set: Moly - SPE296K 060, STD Fit - N/A, File Fit - SPR10246 065
• Coated skirt