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Summit Racing™ Pro LS wrist pins are the toughest on the market—powerfully built for extreme boost and nitrous. They're specifically developed for Summit Racing™ Pro LS pistons and others that use a 2.250 in. pin length for Spiralocks to clear the reluctor ring without notching. Make no mistake, during high-contact stress and impact loading applications, you'll want the confidence that Summit Racing™ Pro LS wrist pins provide! * Part number SUM-S719 is made from H-13 tool steel, an alloy with 289,000 psi tensile strength (vs. common 9310 alloy tool steel pins at 187,000 psi) * Part number SUM-S720 adds diamond-like coating (DLC) to the H-13 tool steel for increased durability, hardness and much lower friction * The DLC wrist pins (SUM-S720) provide better lubricity for use with low-silicon 2618 alloy pistons that may have pin-bore galling issues at the extremes without DLC * H-13 tempers at 1,000 degrees F and readily accepts DLC application (at 400 F) without structural changes * Rockwell hardness: 54 HRC * Increased ductility of 30,500 ksi compared to other materials * Surface-finished to an RA of less than 1 and a concentricity of .000040 in. * 0.215 in. wall-thickness—the thickest on the market for ultimate strength * Only 135 grams * I.D. honed to remove stress-risers
( 4 )
$32.99
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$255.99
ICON FHR Series pistons for GM LS offer premium, custom options in 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. Many of the domed models are solid which allows tailoring the dome height for a specific compression ratio. 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. ICON FHR pistons for GM LS also feature: * 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
( 5 )
$420.99
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$569.99
ICON FHR Series piston and ring sets for GM LS offer premium, custom options in 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. Many of the domed models are solid which allows tailoring the dome height for a specific compression ratio. 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. Completing these kits are file-fit ring sets that allow custom ring gaps for your specific application, and they are built to handle the abuse of stock street or forced induction to nitrous applications. ICON FHR Series pistons for GM LS also feature: * Mini grooves allow an overheated piston that contacts a cylinder wall to transfer heat to the wall. Friction is also reduced over a solid ringland. * 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
( 1 )
$490.99
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$505.99
ICON Premium forged pistons are designed to be application specific and are made from either 4032 or 2618 aluminum. 2618 aluminum has a lower silicon content and is better suited for engine combinations with high compression or a power adder, they also offer an increased rate of thermal expansion. ICON Premium forged anodized piston and ring kits include all the features of an FHR piston, with the addition of an anodized top ring groove and crown, precision CNC-machined valve reliefs and crown features, pressure fed pin bore oiling, and skirt and pin boss struts for increased strength and durability. ICON Premium forged piston and ring kits include pistons and ring stack. Select the kit designed for your build. Additional features: * Mini grooves * CNC-machined valve reliefs and crown * Diamond CNC-turned skirts * Accumulator groove * Dual forced pin oiling * Lateral gas ports on high-compression designs * Spacer rings provided for shorter compression height pistons
Not Yet Reviewed
$726.99
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$874.99
ICON Premium forged pistons are designed to be application specific and are made from either 4032 or 2618 aluminum. 2618 aluminum has a lower silicon content and is better suited for engine combinations with high compression or a power adder. A byproduct of having a lower silicon content is an increased rate of thermal expansion. Because of this, pistons made from 2618 require more piston-to-cylinder wall clearance than their 4032 counterparts. ICON Premium forged anodized pistons include all the features of an FHR piston, with the addition of an anodized top ring groove and crown, precision CNC-machined valve reliefs and crown features, pressure fed pin bore oiling, and skirt and pin boss struts for increased strength and durability. ICON Premium pistons are built in a variety of compression ratios and are available for a wide range of engine types. Select the ones designed for your vehicle. Additional features: * Mini grooves * CNC-machined valve reliefs and crown * Diamond CNC-turned skirts * Accumulator groove * Dual forced pin oiling * Lateral gas ports on high-compression designs * Spacer rings provided for shorter compression height pistons
Not Yet Reviewed
$651.99
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$1,052.99
JE Pistons FSR Superfly GP pistons are the ultimate lightweight pistons for late model stock 2-barrel and similar applications up to 400 hp. FSR forging provides reduced skirt contact that lowers friction for optimum horsepower gains. These pistons feature a .190 in. deep intake valve pocket for maximum compression. The ring grooves are machined for 1.2, 1.2, 3.0mm backcut rings with lateral gas ports for superior ring seal.
Not Yet Reviewed
$199.99
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