JE Pistons ::::: JE Pistons 242890 23deg Dome Set of 8 Pistons

JE Pistons 242890 JE Pistons; 23deg Dome; Oil Rail Support is Included; Set of 8 Pistons; Recommended RingSet: J10008-4125-5

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 @ 64cc: 13.7:1 / 14.6:1
• Comp Ratio @ 76cc: 11.5:1 / 12.3:1
• Dome Volume: 13
• Gram Weight: 448
• Comp Ratio @ 58cc: 15.1:1 / 16.1:1
• CID: 374 / 401
• Bore: 4.125
• Comp Height: 1.125
• Rod: 6.125 / 6
• Gram Weight: 448!
• Stroke: 3.5 / 3.75
• Block Height: 9
• Oversize: STD

Fitments:

• Chevrolet 400 Small Block (1970-1980)