Forged from 2618 or 4032 alloy, Premium series include all of the features of FHR pistons with the addition of precision, CNC-machined valve reliefs and crown, pressure fed oiling, and skirt and pin boss struts for added durability. Pistons listed accept 1/16" (top), 1/16" (second), and 3/16" (oil) rings unless noted. Sets of eight include wrist pins and spiral locks
- Piston Head Type:
- Dish
- Bore (in.):
- 4.000
- Bore (mm):
- 101.600mm
- Recommended Stroke (in.):
- 3.622 in.
- Piston Style:
- Dish, with no valve reliefs
- Compression Height (in.):
- 1.304 in.
- Piston Volume (cc.):
- -12.5
- Piston Material:
- Forged aluminum
- Piston Avg Weight (g.):
- N/A
- Piston Ring Thickness:
- 1.20mm x 1.20mm x 3.00mm
- Quantity:
- Sold as a set of 8.
- Notes:
- Pistons are made of forged 4032 alloy aluminum.
- Wrist Pin Included:
- Yes
- Wrist Pin Style:
- Press-fit or floating
- Piston Pin Diameter (in.):
- 0.927 in.
- Wrist Pin Retainers Included:
- Yes
- Piston Pin Wall Thickness:
- N/A
- Piston Pin Material:
- N/A
- Piston Rings Included:
- No
- File Fit:
- N/A
- Gas Ported:
- N/A
- Gapless:
- N/A
- Make:
- Chevrolet
- Engine Family:
- Chevy small block Gen III/IV (LS-based engines)
- Engine Sizes:
- 6.0L/364-6.2L/376
- Years:
- 1999-2019
- Recommended Rod Length:
- 6.125 in.
- Top Ring Thickness:
- 1.2mm
- Second Ring Thickness:
- 1.2mm
- Oil Ring Thickness:
- 3.0mm
