JE Pistons 257668 JE Pistons; Inverted Dome; For Stroker Motor; For M-6049-SCJ Heads; .990 wrist pin; Set of 8 Pistons; Recommended RingSet: J100F8-4390-5
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:
- Oversize: 0.14
- Block Height: 10.3
- Dome Volume: -5
- CID: 547
- Gram Weight: TBA
- Rod: 6.8
- Comp Ratio @ 72cc: 13.7:1
- Stroke: 4.3
- Comp Height: 1.35
- Bore: 4.5
Fitments:
- Ford 460 Big Block (1968-1997)