JE Pistons 186421 15deg Dome

JE Pistons 186421 JE Pistons; 15deg Dome; Fits 3.480 and 3.500 Stroke; Made to Order; Set of 8 Pistons; Recommended RingSet: J10008-4040-5

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:

• Dome Volume: 7
• Oversize: 0.04
• Rod: 6
• Comp Height: 1.25
• Comp Ratio @ 64cc: 13.5:1
• Comp Ratio @ 58cc: 14.4:1
• CID: 359
• Stroke: 3.5
• Gram Weight: 457
• Block Height: 9
• Bore: 4.04
• Comp Ratio @ 76cc: 12.7:1

Fitments:

• Chevrolet 305 Small Block (1977-2002)