JE Pistons 170880 Inverted Dome

JE Pistons 170880 JE Pistons; Inverted Dome; .990 wrist pin; Set of 8 Pistons; Recommended RingSet: J10008-4440-5

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:

• CID: 557 / 532
• Stroke: 4.5
• Gram Weight: 596
• Rod: 6.7 / 6.8
• Stroke: 4.3
• Comp Ratio @ 74cc: 10.3:1 / 9.9:1
• Comp Ratio @ 80cc: 9.8:1 / 9.5:1
• Comp Ratio @ 94cc: 9:1 / 8.6:1
• Oversize: 0.08
• Block Height: 10.3
• Bore: 4.44
• Comp Height: 1.35
• Dome Volume: -39

Fitments:

• Ford 460 Big Block (1968-1997)