More Power in Every Purchase - Join the Summit Rewards Program Today!

More Power in Every Purchase - Join the Summit Rewards Program Today!

Stay Cool With SUMMER SALE Savings!

CHEVROLET Chevy small block Gen III/IV (LS-based engines) Parts and Accessories

Part Groups

Results 1 - 24 of 677

Clevite H-Series Rod Bearings

Clevite H-Series rod bearings were developed primarily for use in NASCAR type racing but are suitable for all types of competition engines. These H-Series bearings have a medium level of eccentricity, high crush factor, and have hardened steel backs and thin overlays. They also have enlarged chamfers for greater crankshaft fillet clearance and are made without flash plating for better seating. Bearings with .001 in. extra clearance are available for standard size shafts and with or without dowel holes. H-Series bearings are recommended for use with crankshafts that have oversize fillets and where engines run in the medium to high rpm range. They should also be used if contact patterns obtained with Clevite P-Series bearings are too narrow. Contact patterns should ideally cover 2/3 to 3/4 of the bearing surface.

4.81 out of 5 stars ( 161 )

$13.99

$19.99

Red Line Water Wetter Cooling System Treatment

Red Line created the industry of pushing bubbles out of the way to ensure cooling with their Water Wetter cooling system treatment. It's a unique agent for cooling systems that doubles the wetting ability of water. It offers rust and corrosion protection that allows for use of straight water in racing or reduced antifreeze levels in warm climates. It also improves heat transfer and reduces cylinder head temperature. Help your engine keep its cool with Red Line Water Wetter cooling system treatment. Instructions and specs: * Use 1 bottle for most passenger cars and light trucks—treats 3 to 5 gallons or 13.2 to 15.9 liters * Use 2 bottles with larger cooling systems * Use 1 oz. (3 to 4 capfuls) per quart for small cooling systems * Compatible with new or used antifreeze (including those with DEX-COOL and long-life versions) to improve the heat transfer of ethylene and propylene glycol systems * Satisfies ASTM D2570 and ASTM D1384 corrosion tests for glycol-based antifreezes * Contains no ethylene glycol

4.61 out of 5 stars ( 165 )

$13.89

Melling Factory Hydraulic Roller Lifters

Melling factory replacement hydraulic roller lifters are designed and built to get the job done while ensuring efficient performance and quiet valve train operation. They are perfect for when you're ready to freshen up your engine. Melling factory hydraulic roller lifters are manufactured from the finest materials and designed for the proper fit and long dependable lifter life.

4.12 out of 5 stars ( 17 )

$24.99

Summit Racing™ Connecting Rod Bearings

These Summit Racing™ connecting rod bearings are just what you need to freshen up your engine. Why? They use silicon aluminum bi-metal construction. Silicon aluminum is the choice for many of today's engine manufacturers because of its high fatigue strength and superior temperature threshold. Bearing wear is dramatically reduced and the fatigue strength is greatly improved.

4.73 out of 5 stars ( 113 )

$19.99

$20.99

Trick Flow® Hydraulic Lifters and Lash Adjusters

No camshaft swap is complete without a new set of lifters. Treat your engine to the "good stuff" with new Trick Flow® hydraulic lifters or lash adjusters. Featuring durable hardened steel construction, these lifters and adjusters are a must when installing new cams—and are perfect replacements for worn or ticking lifters in used engines. The retro-fit roller lifters with vertical-style link bars are designed for a roller cam conversion in engines originally equipped with a hydraulic flat tappet cam. Overhead valve engines may require different length pushrods. The sets are available in a variety of fitment options for applications from 1955 and up.

4.29 out of 5 stars ( 45 )

$13.99

NGK Laser Iridium Spark Plugs

NGK Laser Iridium spark plugs feature laser-welded technology. Lasers are used to pinpoint precision welds, reducing excess debris; this decreases the required voltage to bridge the spark gap. An iridium disc is welded on the center electrode and a platinum disc is welded on the ground electrode, reducing the wear rate of both surfaces and ensuring great durability and long life. These spark plugs are available for use with a variety of engine types.

4.92 out of 5 stars ( 74 )

$10.99

Red Line Synthetic Motor Oil

Red Line synthetic motor oil is a unique formula designed to provide the highest protection, cleanliness, and superior drain intervals—with the lowest friction for your gasoline, diesel, motorcycle, or marine engine. Choose the viscosity best suited for your engine—and experience the performance and protection of Red Line synthetic motor oil. Features, benefits, and details include: * Fully-synthetic ester formula for passenger cars, light trucks, performance vehicles, and marine applications * Excellent wear protection and friction reduction across a wide range of operating conditions * High detergency allows extended drain intervals and provides increased cleanliness * Improved fuel economy and ring seal for more power * Superior high-temperature stability and oxidation resistance increases lubrication of hot metal, compared to other synthetics * High natural viscosity index (VI) provides thicker oil film in bearings and cams * Less evaporation than other synthetics for improved efficiency and ring seal * Blended with polyol ester base stocks that feature natural multi-grade properties, avoiding unnecessary additives that hinder lubricity * All products are completely compatible with other conventional and synthetic motor oils

4.95 out of 5 stars ( 158 )

$16.97

Fram HP Series Oil Filters

For maximum performance and durability on the street or at the track, trust Fram HP Series oil filters. They offer twice the oil flow rate and four times the dirt-holding capacity of standard oil filters. Their extra-thick steel cans and heavier gauge tapping plates are designed to withstand the high pressures and flexing caused by demanding driving conditions. Tough steel end caps hold a spiral-shaped center tube to offer more durability and protection against collapse. Fram HP Series oil filters are compatible with all oil types and have been optimized for racing and high performance street cars. Additional features include: * Low-restriction racing media designed for high oil flow * 94 percent efficiency at 20 microns * Silicone anti-drainback valve on many applications * 10 to 18 gpm recommended maximum oil flow, depending on model * Maximum burst pressure: 350 to 500 psi, depending on model * Maximum operating pressure of 200 psi * Screen over bypass valve for extra protection against large contaminants * High-flow bypass valve * Flanged steel end caps

4.68 out of 5 stars ( 130 )

$19.99

$23.99

Trick Flow® Engine Steam Line Fittings for GM LS

Today, life is a bit easier! Trick Flow® engine steam line fittings for GM LS are available to upgrade the factory steam tubes of your modified LS-powered cars and trucks to update your race car plumbing system. The fittings are black anodized billet aluminum and attach to the corners of your GM LS cylinder heads. They feature -4 AN male threads and include O-rings and stainless steel bolts. Upgrade to easy with Trick Flow® engine steam line fittings for GM LS.

4.15 out of 5 stars ( 13 )

$14.99

$18.99

Summit Bucks

ACDelco GM Genuine Parts Engine Valve Lifter Guides

ACDelco GM Genuine Parts engine valve lifter guides keep the lifters from rotating. These GM-recommended replacements deliver peace of mind that the fit, form, and function are of the highest standards. Order the guides designed for your GM year/make and engine application.

5.0 out of 5 stars ( 5 )

$13.99

Melling Rocker Arms

Melling rocker arms, available for both domestic and import applications, meet or exceed OEM specifications. Depending on the OE design specifications, Melling rocker arms are provided in either stamped or cast materials. Built from only the best materials and manufacturing processes available, they are perfect replacements priced right for your budget. Melling recommends installing new rocker arms with every engine rebuild to assure long engine life and efficient performance. Answer the little knock under your hood with replacement rocker arms from Melling--a supplier of quality engine parts.

4.58 out of 5 stars ( 71 )

$17.99

$19.99

RedLine D4 Automatic Transmission Fluid

Red Line's D4 ATF is their most versatile automatic transmission fluid, designed for use where Dexron III, Dexron II, Mercon, and Mercon V fluids are recommended to provide a GL-4 level of gear protection. D4 synthetic ATF allows for high-temp operation without varnishing valves and clutches, and facilitates excellent cold-weather operation. It can also be used with manual transmissions and transaxles, like T-5, T-45, T-56, and late model BMWs. Keep your investment protected with Red Line D4 ATF!

4.93 out of 5 stars ( 59 )

$16.97

Summit Racing™ Freeze Plugs

Our Summit Racing™ brass freeze plugs were designed for marine use, but you landlocked guys will get a lot of use out of them, too. All of the necessary plugs are included.

4.8 out of 5 stars ( 100 )

$16.99

Summit Bucks

ACDelco Power Steering Fluid

ACDelco power steering fluid is important for protecting and ensuring the longevity of your power steering system. These hydraulic fluids transfer power in the steering system and are specially formulated to protect the components. With different varieties to suit most applications and environments, they'll keep your power steering system running quietly and efficiently for years to come. Reduce leaks, squeaks, and squeals by ordering the ACDelco power steering fluid formulated for your application.

4.94 out of 5 stars ( 16 )

$11.99

McGard Lug Nuts

McGard lug nuts are designed to last for life. These wheel fasteners are made of restricted chemistry steel for structural integrity, then triple nickel chrome plated in silver or black for lasting beauty. All McGard lug nuts are through-hardened and tempered, reaching the depth of hardness needed for their unsurpassed level of safety (unlike case-hardening, which is only a surface treatment). They're available in a variety of thread sizes, shank lengths and diameters, and seat and conical styles. McGard lug nuts also offer a lifetime guarantee against rust!

4.78 out of 5 stars ( 581 )

$14.99

$21.99

Red Line Power Steering Fluid

Red Line power steering fluid provides much-improved wear protection and resists thermal breakdown. It also delivers continued high-pump output and resists evaporation and foaming at high temperatures. The fluid is suitable in most power steering units to help prevent leakage and squealing.

4.74 out of 5 stars ( 31 )

$15.49

Fel-Pro Headbolt Kits

Fel-Pro headbolt kits contain a complete set of the highest quality headbolts and hardened washers available. They're cold-formed to ensure molecular integrity, then heat-treated prior to thread rolling and machining. Reduced-diameter bolt heads eliminate the need for valvetrain removal and facilitate cylinder head re-torquing. The bolts are available in a variety of head styles for fitment on specific vehicle and cylinder head applications.

4.51 out of 5 stars ( 215 )

$25.99

Red Line D6 Automatic Transmission Fluid

Red Line D6 ATF is the lowest viscosity, most shear stable automatic transmission fluid for consistent operation. It's designed to satisfy Dexron-VI, Dexron-III, Dexron-II, Mercon SP, and Mercedes Benz NAG-2 fluids, as well as API70W/75W/80W and GL-4 gear requirements. It also allows for high-temp operation without varnishing valves and clutches to help prevent transmission failure. For a significantly improved GL-4 level of gear protection, use Red Line D6 ATF!

4.71 out of 5 stars ( 14 )

$16.97

BTR Valve Stem Seals

BTR LS valve stem seals are designed for stock powdered metal and bronze guides; some include a built-in locator for single springs, and some use separate locators. The valve stem seals allow a carefully defined amount of engine oil from the cylinder head into the combustion chamber—to lubricate the rotating valve stem in the valve guide. BTR valve stem seals are produced from high performance materials for increased part life and lower wear. Order the set recommended for your year/make and engine application.

4.81 out of 5 stars ( 21 )

$15.99

$19.99

TransGo Transmission Cooler Bypass Delete Kits

TransGo offers automatic transmission cooler bypass delete kits for a variety of cars and trucks. Each kit includes the bypass replacement assembly; order the model recommended for your vehicle. These kits will correct, prevent, or reduce the following: * Provides all-time cooler flow regardless of temperature * Prevents overheating * Reduces transmission fluid temperature * Eliminates thermostatic assembly * Allows you to accurately check fluid level immediately after install without having to wait or go through a warm-up cycle

5.0 out of 5 stars ( 7 )

$14.91

Melling Valves

It's never a good idea to cut corners when you're installing new valves. Melling is noted for its world-class engineering, superior grade alloy materials, and advanced manufacturing processes. Melling intake and exhaust valves meet the exacting specifications required for efficient, durable, and powerful performance. They feature high-fatigue strength, excellent heat resistance, and offer years of dependable service. Available in a wide variety of designs and materials for most OEM and performance vehicle applications, each valve is built and validated to meet or exceed OE specifications. Melling valves—unsurpassed quality you can trust.

4.6 out of 5 stars ( 42 )

$11.99

$18.99

Summit Racing™ LS Valve Cover Gasket Kits

Summit Racing™ LS valve cover gaskets are excellent options for your engine, especially if it's making high horsepower. Produced using premium materials, our gaskets ensure a leak-free seal for your LS build. Create a tight barrier to keep oil in and external elements out with Summit Racing™ LS valve cover gasket kits.

5.0 out of 5 stars ( 1 )

$17.99

Spicer Drivetrain Products Light Duty U-Joints

Spicer Drivetrain Products light-duty U-joints feature journal crosses that are manufactured from high-quality alloy forgings and heat-treated for maximum life. The bearing cups are case-hardened for strength and durability, while the seals are crafted from nitrile rubber for optimum grease retention and contaminant exclusion. Ample grease reservoirs in each trunnion assure effective lubrication; they're pre-filled with high-quality synthetic lithium grease, providing superior friction-reduction and resistance to higher temperatures. These replacement universal joints are available for dozens of positions, in greasable and non-greasable styles. Order the model designed to fit with your vehicle and engine type.

4.68 out of 5 stars ( 149 )

$16.99

Summit Racing™ Coolant Crossover Delete Kits

Summit Racing™ coolant crossover delete kits allow you to block off the rear coolant crossover or steam passages on your LS cylinder heads. The low-profile design gives extra clearance and does not require removal of the block-off when removing the cylinder head bolts. These delete kits include two billet aluminum plugs, O-rings, and bolts. Order the kit recommended for your year/make and engine application.

5.0 out of 5 stars ( 3 )

$19.99

Modal Header