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
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$3,849.99
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
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.
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$229.48
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$297.98
Summit Racing™ Performance 4340 forged steel connecting rods come in a variety of applications and options. From a light rod street-strip cruiser to a beefy rod for a 1500 hp big block, you will find just the rod for your combination. As always, Summit Racing™ connecting rods are packed with great features at the best prices. Options and features: * Chevy, Ford, Chrysler, and Pontiac * Big and small blocks * Multiple lengths * H-beams and I-beams * Through-bolts to cap-screws * Press-fit to full-floating * Multiple grades of rod bolts from 8740 through L-19
( 37 )
$102.99
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$799.99
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
From low-end torque to top-end horsepower--and everything in between--one of our Summit Racing™ classic cams has you covered. Assembly lube is included.
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$131.99
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$165.99
On Sale
Summit Racing™ forged crankshafts offer maximum strength and the best value for your dollar! Our crankshafts are non-twist forged from certified 4340 steel. They are put through several stages of heat-treatment, and then stress-relieved and shot-peened to provide the strength and reliability you demand for your high performance application. Each journal is micro-polished and a .125 in. radius is used for increased strength. Summit Racing™ forged crankshafts help you get the most in value and performance.
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$1,029.99
$849.99
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$1,229.99
Summit Racing™ SPC Engine Blocks are aftermarket V8 Engine Blocks made for "Street, Performance, or Competition." These new clean sheet designed aftermarket blocks are cast in a modern state-of-the-art German foundry on brand new molds and machined in USA on modern high-speed machining centers that can hold the tightest of tolerances. Why start your engine build with a dirty, old, worn-out production block that needs hundreds or thousands of dollars of machine work--when you can start with a new heavy-duty casting full of high-performance features. We ship these blocks mostly finished but leave the cylinder bore .005" undersize, your machine shop will have to hone them for proper size. You can rest assured that you have a great foundation for your engine build. Check out the features below! Additional details: • Available Versions Include: GM Small Block, GM LS, GM Big Block (coming Soon,) Ford Windsor 5.0 and 351W • Cast in Germany at a Tier 1 OEM foundry • Made with class 35 Iron Alloy, Higher tensile strength and harder than competitors' class 30 • Machine-finished in USA on precision hi-speed machining centers- All dimensions are very accurate! • Priority main oiling systems & Siamese Cylinder bores • Blind head bolt holes • 4-bolt main caps, 180,00 PSI main bolts included
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$2,249.99
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$3,399.99
Summit Racing™ cast crankshafts are perfect for mildly built street engines or just to replace stock crankshafts that have seen better days. These cast crankshafts are precision-ground and micro-polished to exacting tolerances. Order the Summit Racing™ cast crankshaft in the application that you need.
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$274.99
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$364.99
Summit Racing™ Pro LS piston rings are available in numerous sizes, thicknesses, and materials to complement their line of Pro LS forged pistons. These replacement ring sets serve a variety of important roles, including sealing the combustion chamber, improving heat transfer from the piston to the cylinder wall, and regulating engine oil consumption. Order the rings designed to fit your application.
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$140.99
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$150.99
Summit Racing™ offers coated hypereutectic pistons to furnish you with a more affordable engine build. These internal combustion engine pistons are cast using a hypereutectic aluminum alloy—and then layered with a special "break in" coating that wears to the cylinder walls. This coating provides an extra level of protection in three ways: superior thermal and wear characteristics to increase the piston strength; scuff and seizure resistance; and improved groove wear. Whatever your piston requirement, Summit Racing™ has you covered! Order the size and options needed for your application.
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$34.99
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$241.99
Summit Racing™ Pro LS Billet adjustable timing sets and gears provide maximum strength and reliability for your engine build. These single-row chains are precision machined and available in standard, 0.005 under, and 0.010 under lengths for align-honed blocks. Summit Racing™ Pro LS Billet adjustable timing sets and gears work with 3-bolt performance cams and come in both 1x and 4x configurations to match any LS engine. More product features include: * Captured degree bushings that allow the cam to be advanced or retarded in 2-degree increments * The upper gears are compatible with factory LS2 timing chains
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$127.99
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$141.99
Here's a simple high performance solution! These quality Summit Racing cam kits contain a straight-grind, hydraulic flat tappet camshaft along with the matching lifters. The tight lobe separation will boost your torque, throttle response, and mid range power for exciting action at the track and on the road.
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$245.68
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$298.78
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
Summit Racing™ precision cast cylinder heads are made from tough A-356 aluminum alloy and feature Permanent Mold "As-Cast" technology. Port accuracy is unrivaled--meaning CNC porting is not required to provide superior flow. The result is CNC-ported performance at a fraction of the price! We start with precision CNC-finished faces and bolt holes for accuracy and fitment. American craftsmen expertly size and install the manganese bronze valve guides and interlocking ductile iron seats before finishing with a competition-grade valve job. From there, the decks are given a final pass for superior finish. They are finish-assembled in the USA with top-quality components like PAC Racing springs, fasteners, one-piece 21 4N stainless valves, machined locks, Viton® seals and chromoly steel retainers. The final result is the performance you want and Summit Racing™ quality you TRUST!
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$624.99
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$1,999.99
If you've got an early small block Chevy with a long water pump, Summit Racing™ mid-mount serpentine kits offer a better way to drive your engine accessories. Each system features 3/4 in. thick, CNC-machined 6061-T6 billet aluminum alternator and power steering brackets that bring symmetry and a uniform style to your engine compartment--along with easy installation and simple belt adjustment. The kits also include crank, water pump, alternator and power steering pulleys, all crafted from the same billet aluminum, plus all mounting hardware and both serpentine-style belts. The systems work with a standard-style GM alternator and Saginaw power steering pump (not included). Order the model with options preferred for your application.
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$482.99
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$594.99
Summit Racing™ OE-style harmonic dampers are ideal for those mild street rebuilds that don't require the expense of a high-buck race damper. They feature durable nodular construction with bonded elastomer between the inner and outer rings. The balancers also have engraved timing marks, which means no timing tape! Summit dampers are available in a variety of sizes for many engine balance applications. Models are available for hundreds of vehicles; order the OE replacement recommended for your ride.
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$71.99
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$137.99
Summit Racing offers Mustang conversion oil pans for a variety of small block Windsor engine applications from the 1970s, 80s, and '90s. These steel pans include a pickup, dipstick, and main cap stud—and they're available with a black or chrome finish. The wet sump style oil pans are ideal replacements, ensuring proper lubrication for your street/strip muscle car.
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$215.99
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$234.99
On Sale
Deliver power-building airflow to your engine with Summit Racing™ Vortec cast iron cylinder heads. These heads outflow the early model small Chevy heads with wide-open intake runners, efficient combustion chambers, and a high-performance valve job. They are made from a strong cast iron alloy that makes them less brittle than comparable Vortec heads on the market. For performance and great value, select the Summit Racing™ Vortec cast iron cylinder heads preferred for your build.
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$649.99
$549.99
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$599.99
Some people want a chrome pan, while others want a plain-Jane bare pan. No matter which style you like, Summit Racing™ stock replacement oil pans are perfect stamped steel OEM-style replacements. Most come with a stock baffle, a stock pump location, and a drain plug.
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$50.99
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$118.99
Summit Racing™ VVT delete combos are required when removing the active fuel management system on your late model Chevy Gen IV engine. They include a new camshaft sprocket (available in 1 or 3-bolt designs), camshaft bolts, a front timing cover, and a harmonic balancer bolt.
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$161.96
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$170.96
For a lubrication system that can keep up with your high performance engine, start by bolting on one of our Summit Racing™ oil pans. These steel pans are built by hand in America with power-supporting features like a directional windage screen, a trap door baffle for improved oil control, and a built-in crankshaft scraper. They also have magnetic drain plugs, 1/4 in. NPT dipstick fittings (dipstick not included), and a black powdercoated finish for rust prevention. Small Chevy pans are compatible with a 3 7/8 in. stroke, while big Chevy pans work with up to a 4 1/4 in. stroke.
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$57.99
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$376.99
The Summit Racing Pro LS forged pistons are affordable and built to withstand the rigors of high boost and nitrous. These pistons are forged from Premium 2618 alloy - the strongest made. They have specially profiled piston skirts, which allow them to run a tight piston-to wall-clearance for maximum ring seal and minimal friction. They have many other high-tech features too! • Maximum ring-land thickness for power-adders • Dedicated forgings for the best strength-to-weight ratio • Multiple compression ratios specifically targeted for 4.8L, 5.3L, 5.7L, and 6.0L engines • Designed around Premium file fit rings with Gas-Nitride or Plasma steel tops and ductile Napier second rings • Available in versions for Gen. 3 Press-fit, Gen. 4 Floating, and Aftermarket 6.125 rods • Standard and Stroker versions available • Generous valve reliefs that work with both Cathedral port AND Rectangle port heads • Pressure-fed pin-oiling • Pressure seal groove in 2nd ring land for increased seal. • High-Speed brush deburring to remove sharp edges that cause detonation • Ultra-Modern 2.250 pin forgings clear the reluctor rings with stroker cranks • Durable Chromium Steel wristpins. • Replacement Singles Available
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$95.99
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$649.99
Summit Racing™ economy oil pans bring affordable performance to your engine build. Trap door baffles keep oil under control during hard acceleration and the increased pan capacity keeps your high performance oil system fed properly. Building a stroker? Small block Chevy pans will clear up to 3.75 in. stroke cranks, while the big block Chevy pans will clear strokes up to 4.50 in. Next time you're building on a budget look no further than these Summit Racing™ economy oil pans.
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$125.99
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$240.99
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