JE Pistons JG1004-3189 Premium Race Series Piston Ring Set, 4 Cyl. 3.189 in. Bore, 1.0 x 1.2 x 2.8 mm Thick, Steel, Nitride, File Fit
Top compression rings are barrel-shaped ductile iron with a plasma moly coating. Second rings are taper faced cast iron with a phosphate coating. Oil rings are standard tension (unless specified), chrome-plated carbon steel. All sets are .005 in. oversize, for a custom file fitting.
- Bore (in.):
- 3.189 in.
- Bore (mm):
- 81.001mm
- Top Ring Included:
- Yes
- Top Ring Thickness:
- 1.000mm
- Top Ring Material:
- Steel
- Top Ring Facing Material:
- Nitride
- Second Ring Included:
- Yes
- Second Ring Thickness:
- 1.200mm
- Second Ring Material:
- Ductile iron
- Second Ring Facing Material:
- Phosphate
- Oil Ring Included:
- Yes
- Oil Ring Thickness:
- 2.800mm
- Oil Ring Material:
- Steel
- Oil Ring Facing Material:
- Nitride
- Oil Ring Tension:
- Low
- Oil Ring Tension Rating (lb.):
- N/A
- Gapless:
- No
- Gas Ported:
- No
- File Fit:
- No
- Quantity:
- Sold as a set of 4.
- Notes:
- Barrel face back cut neutral top ring, Napier back-cut neutral second ring with flex vent style oil ring
