JE Pistons is the leader in forged racing pistons. With 70-plus years of experience, in-house forging, and industry-leading technology, JE Pistons are designed to perform at the top levels of all forms of motorsports.
- Piston Head Type:
- Dome
- Bore (in.):
- 4.500
- Recommended Stroke (in.):
- 4.250 in.
- Piston Style:
- Dome, with two valve reliefs
- Compression Height (in.):
- 1.520 in.
- Piston Volume (cc.):
- 25.3
- Piston Material:
- Forged aluminum
- Piston Avg Weight (g.):
- 728
- Quantity:
- Sold as a set of 8.
- Wrist Pin Included:
- Yes
- Wrist Pin Style:
- Press-fit or floating
- Piston Pin Diameter (in.):
- 0.990
- Wrist Pin Retainers Included:
- Yes
- Piston Pin Wall Thickness:
- 0.20
- Piston Pin Material:
- 5115
- Piston Pin Length:
- 2.930
- Piston Rings Included:
- No
- File Fit:
- N/A
- Gas Ported:
- N/A
- Gapless:
- N/A
- Make:
- Chevrolet
- Engine Family:
- Chevy big block Mark IV
- Engine Sizes:
- 8.9L/540
- Recommended Rod Length:
- 6.535 in.
- Cylinder Head:
- Open Chamber
- Top Ring Thickness:
- 0.017
- Second Ring Thickness:
- 1/16 in.
- Oil Ring Thickness:
- 3/16 in.
