ICON FHR SERIES FORGED PISTONS FOR AFTERMARKET 6.125" CONNECTING ROD LENGTH (SET OF 8) - FOR GEN 3 & GEN 4 LS ENGINES
ICON FHR Series pistons for GM LS offer various bore sizes as an "off the shelf" option for your LS-family engine. FHR (Formed Head Relief) pistons have valve reliefs that are formed in as the piston blank is pressed into the die, creating a stock, but light forging. They are constructed from high-strength, forged 4032 aluminum alloy for increased durability while maintaining tighter piston-to-wall clearance for increased cylinder sealing, lower cylinder wear, and stock-like noise levels, making them ideal for street and lightly boosted applications.
Available in various bore sizes for 5.3L, 5.7L, 6.0L, and 6.2L LS engine applications.
NOTE: Optional piston ring set will be file fit.
Features:
- Mini grooves allow an overheated piston that contacts a cylinder wall to transfer heat to the wall. Friction is also reduced over a solid ring land.
- Accumulator grooves provide a reservoir area for gases that pass by the top ring. Pressure is reduced between top and second ring to help stabilize flutter and maximize ring seal.
- 0.030 in. offset wrist pins
- Round wire locks
- M42 skirt coating
Specifications:
- Stroke: 3.622" OR 4.000"
- Rod Length: 6.125"
- Piston Style: Flat Top
- Piston Material: Forged 4032 Aluminum
- Compression Height: 1.304"
- Wrist Pin Diameter: .927"
- Ring Thickness: 1.50mm top x 1.50mm second x 3.00mm oil
NOTE: Please ensure that you select the correct options for your combination. Because of the unique nature of piston application specifics, a 20% restocking fee is assessed on any returned/exchanged sets. If you need assistance determining which set is correct for your application, just send a message via the contact us page.
