JE Pistons ::::: JE Pistons 207417 Inverted Dome for Dart/SVO Big Bore Block

JE Pistons 207417 JE Pistons; Inverted Dome; For Dart/SVO Big Bore Block; Oil Rail Support is Included; .927 Pin Diameter; Set of 8 Pistons; Recommended RingSet: J100F8-4125-5

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 @ 60cc: 10:1 / 9.8:1
• Rod: 6.25 / 6.2
• Block Height: 9.48
• Bore: 4.125
• Stroke: 4 / 4.1
• CID: 427 / 438
• Comp Height: 1.23
• Comp Ratio @ 56cc: 10.4:1 / 10.2:1
• Gram Weight: 464
• Oversize: STD
• Comp Ratio @ 64cc: 9.5:1 / 9.7:1
• Dome Volume: -30

Fitments:

• Ford 351 Small Block (1957-1997)