JE Pistons ::::: JE Pistons 243313 18deg Dome for Big Chief/Duke/Victor Head

JE Pistons 243313 JE Pistons; 18deg Dome; For Big Chief/Duke/Victor Head; Oil Rail Support is Included; Set of 8 Pistons; Recommended RingSet: J77008-4600-5

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 @ 82cc: 16.8:1
• Dome Volume: 18
• Bore: 4.6
• CID: 565
• Gram Weight: 589
• Block Height: 9.78
• Oversize: 0.134
• Stroke: 4.375
• Comp Ratio @ 97cc: 14.2:1
• Rod: 6.535
• Comp Height: 1.06
• Comp Ratio @ 87cc: 15.8:1

Fitments:

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