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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 )
$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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$517.99
D.S.S. Competition Engine offers E Series forged piston and ring kits for a variety of applications, including many Chevy and Ford V8 small block engines from 1963 and up—an ideal choice for a budget performance engine build. Forged and machined from premium wear-resistant 4032 alloy, these pistons are the low-cost alternative to cast hypereutectic pistons. They're loaded with features, such as: fully CNC-machined piston tops; forged in oil drain backs; diamond turned skirts; full floating or press-fit heavy-duty wrist pins; double true arc pin retaining locks; and more. Available with flat top or dish style pistons, in a wide range of size and stroke options, the kits are sold in sets of 8. Additional details: * Ring set included * Fully machined piston crown * Lightweight design * Precision-honed pin bores * Forged side reliefs * Boost and NOS ready (mild levels)
( 2 )
$479.95
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$509.95
JE Pistons sport compact pistons are specifically engineered for extreme applications, up to and including professional competition. In this environment, the higher compression ratios, highest boost, or heavy nitrous usage necessitate the higher tensile strength 2618 aluminum alloy. Their dome/dish requires no deburring or preparation and features smooth-flowing radii for excellent flame travel. A pin fitting, wire locks, and rings are included.
Not Yet Reviewed
$261.16
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$349.99
Total Seal's AP steel gapless 2nd piston ring sets feature their Advanced Profiling (AP) 440B stainless steel top ring with C33 chromium nitride face coating that doesn't allow dirt to penetrate. It is combined with a cast gapless 2nd ring, and a low, standard, or high-tension oil ring. The sets work in all applications including extreme nitrous, boost, turbo, and forced induction. With Advanced Profiling rings, you get the same horsepower producing piston ring technology that Total Seal delivers to the top builders in Cup, IRL, NHRA, IHRA and Formula 1. Order the ring set for your application.
Not Yet Reviewed
$530.57
Total Seal Maxseal gapless top piston ring sets are designed to cut blowby to negligible levels via their gapless ring technology that utilizes a narrow rail to bridge the normal end gap, sealing off the path blowby otherwise would take. Featuring a Maxseal gapless top ring, Napier 2nd ring, and standard-tension oil ring, Total Seal sets are ideal for use in all applications, including mild nitrous, boost, turbo, and forced induction applications. Order the piston ring set to fit your application.
( 1 )
$381.57
Total Seal AP Steel street and race piston ring sets are a preferred choice for race engine builders. They work well in all applications, including extreme nitrous, boost, turbo, and forced induction applications. Each set starts with Total Seal's Advanced Profiling (AP) 440B stainless steel top ring with C33 chromium nitride face coating that doesn't allow dirt to penetrate. The 2nd ring is Napier-style ductile iron and the sets are finished with a low, standard, or high-tension oil ring. For increased performance and longer life, choose Total Seal's AP Steel conventional piston ring sets with the specs needed for your application.
( 1 )
$375.68
JE Ultra Series pistons combine all of the best, most desirable piston features, such as thermal barrier crown coating, lateral gas ports, thick-wall wrist pins, and a revolutionary new forging technology for the ultimate in strength. They are ready for massive power and boost right out of the box. Features of the JE Ultra Series pistons: * Grain flow optimized 2618 forging * Lateral gas ports improve ring seal * Ceramic crown coating—thermal barrier blocks combustion heat for durability and better exhaust scavenging characteristics * Perfect Skirt Coating—protects skirts, reduces friction, and eliminates cold-start piston slap and false knock on computer-controlled engines * Accumulator grooves reduce ring flutter at high rpm * Double broach pin oiling * Upgraded 9310 pins and locks—thicker, premium material wrist pins boosts strength * Carbon steel nitride rings
( 2 )
$349.99
Be the driving force in your powersports performance with Wiseco Racers Choice GP-Series piston kits! The Racers Choice GP-Series pistons are forged to be tough and durable to stand up to the abuse of high performance applications. With the pistons CNC-machined high-silicon aluminum alloy, Electra coating, removed boost ports, and high performance rings, your performance is optimized. Select the piston kit for your application needs.
Not Yet Reviewed
$322.97
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$343.97
JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons for European, import, and sport compact applications, and they have been performance-proven in victory lane time and time again. JE Pistons Subaru FA Series pistons are single replacements. Available in different bore sizes for right or left, the pistons are specifically engineered for extreme applications up to, and including, professional competition. In such environments, the higher compression ratios and boost necessitate the high-tensile strength of forged 2618 aluminum construction. The skirts feature a proprietary Forged Side Relief (FSR) forging design that minimizes friction and power loss with reduced skirt width and saves additional weight with a shorter wrist pin. High-quality wrist pins, locks, and piston rings are included. Equip your engine with the best in forged pistons—JE Pistons.
Not Yet Reviewed
$299.99
JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons for European, import, and sport compact applications, and they have been performance-proven in victory lane time and time again. JE Pistons Subaru EJ Series pistons are single replacements. Available in different bore sizes for right or left, the pistons are specifically engineered for extreme applications up to, and including, professional competition. In such environments, the higher compression ratios and boost necessitate the high-tensile strength of forged 2618 aluminum construction. The skirts feature a proprietary Forged Side Relief (FSR) forging design that minimizes friction and power loss with reduced skirt width and saves additional weight with a shorter wrist pin. High-quality wrist pins, locks, and piston rings are included. Equip your engine with the best in forged pistons—JE Pistons.
Not Yet Reviewed
$299.99
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$574.99
KB Performance hypereutectic pistons are made from 390 aluminum alloy and heat-treated to T6 standards, which makes them 30 percent stronger than ordinary untreated hypereutectics. Their 100 percent CNC-machined crowns, high upper compression-ring location, gas-accumulator groove, drilled oil returns, and spiral-lock retainer grooves make these pistons outstanding for performance applications. They have a lightweight, rigid-rib skirt design that stabilizes the piston in the bore. All of this adds up to pistons that fit tighter than forged types, provide improved oil control, reduce blow-by, increase ring life, eliminate cold start-up knocking, and won't cost you an arm and a leg! Thousands of models are available—find the set and options designed for your vehicle and engine application.
( 135 )
$306.99
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$425.99
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