JE Pistons ::::: JE Pistons 243316 18deg Dome for Big Chief/Duke/Victor Head

JE Pistons 243316 JE Pistons; 18deg Dome; For Big Chief/Duke/Victor Head; Oil Rail Support is Included; Set of 8 Pistons; Recommended RingSet: J77008-4610-5

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: 4.61
• Oversize: 0.144
• Comp Ratio @ 97cc: 14.1:1
• Stroke: 4.25
• CID: 568
• Comp Ratio @ 87cc: 15.8:1
• Block Height: 9.78
• Comp Height: 1.12
• Comp Ratio @ 82cc: 16.8:1
• Gram Weight: 616
• Rod: 6.535
• Dome Volume: 20

Fitments:

• Chevrolet 454 Big Block (1970-2000)
• Chevrolet 427 Big Block (1966-1969)