JE Pistons 131633 23deg Inverted Dome

JE Pistons 131633 JE Pistons; 23deg Inverted Dome; Extreme Duty; Set of 8 Pistons; Recommended RingSet: J10008-4155-5

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: 407
• Comp Ratio @ 76cc: 7.8:1
• Block Height: 9
• Dome Volume: -36
• Bore: 4.155
• Comp Height: 1.425
• Comp Ratio @ 64cc: 8.7:1
• Rod: 5.7
• Comp Ratio @ 58cc: 9.1:1
• Gram Weight: 518
• Oversize: 0.03
• Stroke: 3.75

Fitments:

• Chevrolet 400 Small Block (1970-1980)