JE Pistons ::::: JE Pistons 242892 23deg Dome Set of 8 Pistons

JE Pistons 242892 JE Pistons; 23deg Dome; Oil Rail Support is Included; Set of 8 Pistons; Recommended RingSet: J10008-4165-5

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:

• Comp Ratio @ 76cc: 12.5:1 / 11.8:1
• CID: 382 / 409
• Bore: 4.165
• Comp Ratio @ 58cc: 16.3:1 / 15.3:1
• Stroke: 3.5 / 3.75
• Rod: 6 / 6.125
• Block Height: 9
• Comp Height: 1.125
• Comp Ratio @ 64cc: 14.8:1 / 13.9:1
• Dome Volume: 13
• Gram Weight: 468
• Oversize: 0.04

Fitments:

• Chevrolet 400 Small Block (1970-1980)