JE Pistons ::::: JE Pistons 170877 Flat Top

JE Pistons 170877 JE Pistons; Flat Top; .990 wrist pin; Set of 8 Pistons; Recommended RingSet: J10008-4390-5

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
• Comp Ratio @ 80cc: 12.5:1 / 13:1
• Block Height: 10.3
• Gram Weight: 577
• Comp Height: 1.35
• Dome Volume: -3
• Gram Weight: 585
• Comp Ratio @ 74cc: 13.4:1 / 13.8:1
• Comp Ratio @ 94cc: 11:1 / 11.4:1
• Rod: 6.8 / 6.7
• Stroke: 4.5 / 4.3
• CID: 520 / 545
• Oversize: 0.03

Fitments:

• Ford 460 Big Block (1968-1997)