JE Pistons 257665 Flat Top for Stroker Motor

JE Pistons 257665 JE Pistons; Flat Top; For Stroker Motor; For M-6049-SCJ Heads; .990 wrist pin; Set of 8 Pistons; Recommended RingSet: J100F8-4390-5

JE Pistons - Domestic: For over 60 years, JE Pistons has been the industry leader in forged racing pistons for Chevy, Ford, Mopar and Buick engines.

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

Specifications:

• Bore: 4.39
• Rod: 6.8
• Block Height: 10.3
• Comp Ratio @ 72cc: 13.2:1
• Dome Volume: -5
• Oversize: 0.03
• Comp Height: 1.35
• CID: 520
• Gram Weight: TBA
• Stroke: 4.3

Fitments:

• Ford 460 Big Block (1968-1997)