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Diamond Racing Pistons - 4B11

Piston Features:

• 3D milling on piston crowns for ready to install finish
• Offset pins for quiet operation
• Side gas ports for better ring seal
• Moly skirt coating for friction loss and skirt wear protection
• Ratios figured for 87mm x .040 head gasket @ 8.660 deck
• Top ring down dimension: .300"-.265" 1.070cd
• Premium 8620 .180W wrist pins chamfered for roundwire locks included
• Premium 1.0mm x 1.2mm x 2.8mm ring package included
• Over-sized valve pockets - for larger than stock valve sizes
• Valve pocket depth: 0.150" intake and .070" exhaust
• 2618 material for High HP/Boost applications