JE Pistons ::::: JE Pistons 218906 81.5mm Bore

JE Pistons 218906 81.5mm Bore; 0.02mm Over; 3.433 Stroke; 5.433 Rod; 1.195 C/D; 42.7 Head CCs; 9.0:1 Compression Ratio; -9.8 Dome CCs; 261 Gram Weight; Accepts Turbo and Nitrous; Forged Side Relief (FSR)

JE Pistons - Sport Compact: JE Pistons are specifically engineered for extreme applications up to, and including, professional competition. In this environment, higher compression ratios, extreme boost levels and heavy nitrous usage necessitate the higher tensile strength 2618 aluminum alloy found in every JE Piston.

Features:

• Application Specific Forgings for an Optimized, Uniform Crown Thickness
• Contact Reduction Groove to Minimize Frictional Drag
• Accumulator Groove for Increased Top Ring Stability and Sealing
• CNC-Machined Side Relief with Lower Support Band for Additional Skirt Strength
• Honed Pin Bores, Double Pressure Fed Pin Oilers and Wire Locks Included
• JE ProSeal Piston Rings are included with your JE Pistons

Specifications:

• C/D: 1.195
• Head CCs: 42.7
• Comp Ratio: 9.0:1
• Oversize: 0.02mm
• Gram Weight: 261
• Stroke: 3.433
• Dome CCs: -9.8
• Bore: 81.5mm
• Rod: 5.433