JE Pistons ::::: JE Pistons 297119 BMW S54B32 12.5 Kit

JE Pistons 297119 JE Pistons; Set of 6 Pistons; Recommended RingSet: JG1006-3425

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:

• Oversized: STD
• Gram Weight: 340
• Stroke: 91mm
• Bore: 87.0mm
• Comp Ratio: 12.5:1
• Dome CC: -8.7
• Head CC: 33
• Rod: 139mm
• Skirt Type: Full Round
• C/D: 32.3mm

Fitments:

• BMW M3 (2001-2006)
• BMW Z3 (2001-2002)
• BMW Z4 (2006-2008)