Availability
Looking for big LS engine power at an affordable price? Summit Racing™ remanufactured 5.3L LS long block crate engines are rated at 450 HP and 420 lbs.-ft. torque! This engine will give you the performance and drivability you have been searching for at a price you can afford. It can be a performance upgrade for 99-07 Chevy trucks, or an engine swap into your project vehicle. You will save time and money by leaving the machine-work and assembly to us. Just bolt on your accessories and drop it in. These engines are machined and assembled for us by the guys at ATK, and backed with a 2-year unlimited mile warranty for peace of mind. Technical specifications: * Horsepower: 450+ * Torque: 420+ * Block: Seasoned OE LM7/5.3L iron * Bore/stroke: 3.800-3.820 in. x 3.622 in. * Year range: 1999-2007 * Displacement: 323 C.I.D. * Crankshaft: OEM GM 3.622 in. stroke internally balanced 24-tooth reluctor wheel * Connecting Rods: OE GM forged powder metal 6.093 in. * Pistons: Hypereutectic flat top * Piston rings: Moly * Compression ratio: 10:1 compression * Camshaft: Summit Racing Pro LS Roller * Camshaft specifications: Lift- 550/550, Duration @.050- 222/232 * Camshaft bearings: Installed and clocked to OEM position * Cylinder heads: #799 or #243 OE aluminum 64cc 2.00 in./1.55 in. valves * Freeze plugs: Brass installed and sealed * Rocker arms: OE powdered metal 1.7 ratio * Oil Galley plugs: Installed and sealed
( 37 )
$3,849.99
Summit Racing™ Performance LS7 hydraulic roller lifters are a definite upgrade over stock originals. Designed for high horsepower engines that demand increased oiling and higher-rpm capabilities, these replacement lifters will fit in SBC roller engines, as well as LS-based engines without active fuel management (AFM/DOD). Beat the competition to the finish line with Summit Racing™ Performance LS7 hydraulic lifters!
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$229.99
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$234.99
You can get up to 50 percent more starting power when you pick Summit Racing™ high-torque mini starters. They're 40 percent lighter, as well as 1/3 smaller. That latter characteristic translates into increased clearance, but both factors can be equally important in a race car. So can features such as full ball-bearing construction, which allows these starters to work great while lasting a long time.
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$162.99
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$199.99
Summit Racing™ LS lifter and guide kits offer top-quality, precision-made pieces at an excellent value! These kits include a set of roller lifters, lifter guide bolts, and LS2 lifter guides.
( 41 )
$212.38
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$265.98
You don't have to sacrifice safety or quality to save money; our affordable Summit Racing™ bracket racer SFI dampers have been spin-tested to 12,500 rpm and carry an SFI-18.1 rating. The carbon steel dampers have an injection-molded and bonded elastomer, easy-to-read engraved timing marks, removable counterweights (where applicable), and a highly polished baked-enamel finish, so they look as good as they perform.
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$161.99
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$237.99
Our Summit Performance® headers are manufactured from mandrel-bent tubing for superior flow and greater horsepower. The headers feature a pressure-formed collector for a better flow rate and a JIG-welded tube-to-flange plate for a perfect fit. They're made for off-road and racing use only. Unless otherwise noted, these headers are designed to fit the vehicle as it came from the manufacturer. This includes components like cylinder heads, chassis, steering, motor mounts, body mounts and bushings, etc. If your vehicle is using aftermarket components, parts from other applications, or custom-altered parts, then it is the installer's responsibility to verify fitment. The headers are available in a wide range of styles, sizes, and configurations. Order the pair recommended for your application. (Special warning regarding Summit Racing™ painted headers only. The paint on these headers is not designed as a final finish; it is designed to protect the headers after the manufacturing process and during shipping. This paint will not withstand the high heat associated with engine break-in, nor will it withstand the heat cycles associated with any type of driving. It is recommended that this protective coating be stripped, and a high heat paint or coating designed for use on headers be applied.)
( 1974 )
$175.99
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$499.99
Summit Racing™ combines quality and economy to offer replacement transmissions in many styles and options. These units are remanufactured with all-new clutches, thrust washers, seals, bushings, and high-energy bands—plus a hardened sunshell. Other features include a rebuilt front pump, a street performance valve body, and high-quality seals and gaskets. You get all these impressive upgrades, along with reliable performance and extreme value. All transmissions are Dyno tested before they're shipped. Order the model recommended for your vehicle.
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$1,849.99
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$5,999.99
Our Summit Racing™ complete front drum-to-disc brake conversion kits take the guesswork and high price tag out of building a braking system. The kits are available in standard and ultra versions (ultra versions include cross-drilled, slotted rotors and braided brake lines). Order the model recommended for your vehicle. Summit Racing™ complete brake conversion kits include: * Power brake booster * Master cylinder * Proportioning valve kit (where applicable) * Rotors * Calipers * Backing plates (where applicable) * Spindles or brackets to convert existing spindles (depending on application) * Brake hoses and banjo bolts (where applicable) * Bearings * Seals * Dust caps * Spindle nuts and washers * Installation hardware
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$735.95
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$852.95
Summit Racing™ hydraulic lifters are designed with two things in mind: High quality and affordability. We think you'll be happy with the results. These lifters have a lengthened plunger, designed for less wear and to provide precise oil control through 6,000 rpm.
( 95 )
$122.99
Summit Racing™ Pro LS forged H-beam connecting rods deliver industry-leading fit, finish, and durability at an affordable price. They're available in different size options, individually or in a set of 8. Check out the long list of premium features: * 4340 forged steel * Tested to over 1,200 hp in boosted applications * Designed for up to 5,000 ft. per minute avg. piston speed in Street and Drag applications * ARP 2000 rod bolts with 200,000 psi tensile strength * Dual ribbing on rod cap for maximum strength * Stroker clearanced--minor cylinder notching may be required * Accommodates most camshafts with 4.250 stroke * Bores finished to +/- .0001 in. * Balanced to within +/- 1 gram per end * Full-floating with precision-honed bronze bushing * Small-end supports the wrist pin with minimal side clearance for maximum shear strength * Each rod is magnetic particle tested to ensure flawlessness * Shot-peened finish to remove potential for stress risers
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$88.99
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$699.99
Summit Racing™ performance fit radiators feature a quality aluminum core and are designed to fit your vehicle. They offer improved heat dissipation over OEM radiators, and some models are available with a built-in automatic transmission cooler. Modifications may be required when installing Summit Racing™ performance fit radiators. Designed for use with electric fans, the OEM fan shroud is not compatible with these radiators in most applications.
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$271.99
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$444.99
Designed for stock and mildly hopped-up street vehicles, our Summit Racing™ torque converters give you the extra stall speed that you need for quicker launches. They're available for a variety of transmission makes and models. Summit Racing™ converters are computer-balanced and feature: * Submerged arc welds * New turbine hub * Custom stator * New pilot * New impeller hub
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$294.99
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$564.99
Summit Racing™ hydraulic roller lifters are designed with two things in mind: High quality and affordability. We think you'll be happy with the results. These lifters are made to fit your OEM hydraulic roller camshaft engine with no modifications.
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$199.99
Summit Racing™ LS conversion headers are made of 304 stainless steel and offer great quality, performance, and affordability. These will allow you to swap an LS into almost anything and provide more clearance than manifolds at the collectors. Our headers are mandrel bent, TIG-welded, and feature a polished stainless steel construction. They also feature V-Band collector construction, collector merge spikes, and include collector stubs, bolts, and graphite manifold gaskets for easy installation.
( 18 )
$289.99
Get more power from a high-energy ignition than you ever expected with a brand new Summit Racing™ blueprinted HEI distributor. They feature a 50,000 V coil, medium weight advance springs, and an aluminum housing. The distributor shafts are guided by precisely aligned bushings for durability in extended street use, and most models include an adjustable vacuum advance. Separate advance springs are available, so you can fine-tune to your hearts content. Be in it to win it—with the Summit Racing™ blueprinted HEI distributor designed to fit your application.
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$97.99
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$301.99
Summit Racing™ Pro LS Swap aluminum radiator and fan combo kits are available for most popular LS swap applications. The kits include a quality-constructed aluminum radiator to provide exceptional weight savings over stock equipment, fan shroud, and a radiator cap. The radiators come in a variety of configurations, each possessing their own unique combination of features, to work for the specific make and model vehicle that they're intended. Install one of these cooling aluminum radiator and fan combos in the front of the engine bay to neutralize the threat of overheating. Select the Pro LS Swap radiator and fan shroud combo designed for your application.
Not Yet Reviewed
$798.99
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$919.99
Summit Racing™ Pro LS upgraded rocker arms feature high-quality rocker bodies that utilize the factory style pedestal mount. They are made of high-grade cast steel construction to ensure long-lasting durability and performance. This design replaces the factory bearing and powdered metal trunnion and utilizes a captive bearing design and a bearing steel trunnion. These rocker arms are a perfect upgrade for higher rate springs and performance camshafts. Summit Racing™ Pro LS upgraded rocker arms come preassembled with heavy-duty trunnion kits, which saves you time and the additional cost of an installation tool. Features include: • New body casting includes thicker webbing in critical areas for increased strength • Additional oiling provisions for the bearings • Heavy-duty clips or retainers • Durable captive bearing design and bearing steel trunnion
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$25.99
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$328.99
If you're looking to convert over to LED headlights in your classic car or truck, Summit Racing™ direct-fit LED Headlights bulbs will help you see the light. Available with options that include sealed or unsealed, round or rectangular, and single or dual-beam capabilities, you're sure to find what you're looking for. Add some modern capabilities to your favorite ride with the Summit Racing™ direct-fit LED headlights best suited for your application.
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$79.99
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$99.99
Summit Racing™ Pro LS Truck Swap cams are affordable and give you maximum punch where the torque converter hits. The cam lobes are designed for excellent valvetrain longevity. Both drop-in or high-lift versions are available. They come in stages allowing you to quickly determine which gives you the idle and efficiency you are looking for. Idle response and the midrange torque from theses camshafts is unmatched. Starting with American bearing steel, they are precision machined on a Landis 3LB CNC grinder with CBN diamond wheels for an extremely good finish quality. The lobes have been designed for stability at high rpm with the spring pressures found in commonly available, quality spring packs.
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$299.99
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$319.99
On Sale
Summit Racing™ Roll-About Engine Cradles are an economical solution to store your engine. These roll-about engine cradles are made from 14 gauge square steel tubing and have a black powder coated finish. They can be disassembled for storage when not in use and include Grade 5 fasteners and 3 in.caster wheels. Max weight limit is 1,000 pounds.
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$50.99
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$60.99
$45.89
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$54.89
Summit Racing™ link bar hydraulic lifters are drop-in retrofit lifters designed to allow conversion to street hydraulic roller camshafts. These lifter bodies are machined from cold formed steel with clipped axles. They feature .700 in. diameter wheels and are designed for street use up to 6,500 rpm.
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$620.99
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$668.99
Swapping a GM LS based engine just got a lot easier! Summit Racing™ Pro LS cast aluminum oil pans are specifically designed to install an LS engine in a variety of GM muscle car and truck chassis. These pans offer OEM fitment, oil filter mounting, oil cooler provisions, and use OEM-style gaskets. They are manufactured from cast aluminum to provided proper structural rigidity and heat dissipation. The pans include a baffle, oil pickup tube, sump plug, oil filter stud, and oil passage cover.
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$379.99
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$399.99
Give your roller lifters the proper orientation with Summit Racing™ lifter guides. Hydraulic roller lifters cannot be allowed to rotate, and our sturdy lifter trays—or buckets—will register your lifters to prevent rotation. They're available in a variety of styles for applications from the 1980s and up. Trust Summit Racing™ lifter guides to keep your lifters captive!
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$9.99
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$36.99
From low-end torque to top-end horsepower--and everything in between--one of our Summit Racing™ Classic cam kits has you covered. These power-building kits include a hydraulic camshaft, lifters, and assembly lube.
( 450 )
$229.48
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$275.98
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