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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
( 39 )
$3,849.99
On Sale
Holley Mid-Mount complete accessory systems achieve what no other accessory bracket systems do--eliminate the brackets! This pulls in all the accessories tighter than other accessory drives by bolting directly to other components for a clean, integrated form. They offer superb engine visibility to show off your horsepower, not your accessories. Holley Mid-Mount complete accessory systems are available in several versions and finishes to match your application. Order the kit designed to fit your engine.
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$4,449.95
$2,023.95
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$4,003.95
Chevrolet Performance developed the new SuperMatic 6L80-E 6-speed automatic transmissions with upgraded internal components, offering an exceptional torque rating of 650 lbs.-ft. That's a 45 percent increase over regular-production versions of this same transmission. A deep first gear enables strong launch performance, while the top gear supports balanced performance on the highway. They're for use with Chevrolet Performance LS and LSX crate engines in RWD applications. SuperMatic 6L80-E transmissions feature: * 3,000 to 3,400 stall converter * Electro/hydraulic controls with clutch-to-clutch shifting * Output torque rating of 650 lbs.-ft. * Gear ratios: 4.02 (1st), 2.36 (2nd), 1.53 (3rd), 1.15 (4th), 0.85 (5th), 0.67 (6th) * Lightweight diecast aluminum case contributes to dry weight of approximately 195 lbs. * Uses DEXRON VI premium fluid * Truck-style production oil pan * Production vent tube assembly * Approximately 23.5 in. long * Controller and harness, with calibrations for street and track * Harness also includes paddle-shift connection, transmission bulkhead connector that supports aftermarket gear indicator displays, electronically controlled shifters, and more * Chevrolet Performance-specific design includes provisions for an aftermarket transmission cooler, including -6 AN fittings
( 1 )
$5,182.26
On Sale
Holley Terminator X MAX engine management systems let you take control of your domestic V8 engine. They give you complete charge of your engine and self-learning fuel strategies, along with the proven, race-winning technology of Holley EFI—all at a budget-friendly price! Every MPFI Terminator X MAX features real-time fuel learn, high-impedance injector drivers, an integrated one-bar MAP sensor—and four programmable inputs and outputs, ideal for electric fans, boost control solenoids, progressive nitrous control, and much more. Also, Holley offers the X MAX systems with either or both drive-by-wire (DBW) throttle body control or transmission control. All kits come fully loaded with base maps for common domestic V8 engine combinations to get you out of the garage and onto the road or track fast. Order the model recommended for your vehicle application. Features include: * Holley EFI industry-leading, easy-to-use software suite allows full laptop access for advanced users * Real-time fuel map learn—takes the guesswork out of tuning your base fuel table * High-impedance injector drivers will safely power most standard injectors and Holley EFI injectors (will not control low-impedance injectors) * Bosch LSU 4.9 wideband relays AFR information to the ECU for accurate reading and precise tuning control * On-board one-bar MAP sensor is perfect for N/A or nitrous engine combos * MAP sensor vacuum hose adapters * 4 inputs: 12 V, ground, 5 V, and frequency * 4 outputs: Ground, PWM, and for accessories * Boost control: boost vs. time, boost vs. gear, boost vs. rpm, boost vs. speed, and boost safeties * Nitrous control: single channel of wet or dry, progressive or non-progressive, rich/lean safeties, and target closed loop AFR; adjustable through touch screen * Advanced tables can be used for any custom tables * On-board diagnostic LEDs allow you to identify any critical engine issues at a glance * The compact ECU size allows you to mount it virtually anywhere. Remember, diagnostic LEDs must face up! * Plug-and-play compatible with more Holley EFI accessories * Available with or without a 3.5 in. touch screen LCD hand-held with easy-to-use calibration wizard; allows you to quickly build a base tune for most V8 engines, as well as tuning and gauge display functions
( 89 )
$2,299.95
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$2,499.95
$2,068.95
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$2,248.95
Tremec introduces the Magnum-F 6-speed manual transmissions for fourth-generation Camaros and Firebirds. Designed to replace T-56 transmissions in 1998-2002 GM F-body cars, the Magnum-F leverages Tremec's pervasive TR-6060/Magnum architecture in order to provide fourth-gen enthusiasts significantly improved performance and relief from a shrinking pool of quality T-56 replacement parts. Born in the vacuum created by the release of the original T-56 Magnum (now known simply as 'Magnum') back in 2009, the Magnum-F fills a longstanding void in the overall Magnum line with regard to shifter locations—addressing not only LS1-powered '98-'02 F-bodies, but several other applications that utilize a similar shifter position. Beneficiaries include third-generation F-bodies, LT1-powered fourth-gens, LS-swapped late models of all varieties, and sport compact applications such as A80 Supras, FD RX-7s, and more! Where the original Magnum shifter locations may prove too far forward, and the extended length Magnum XL's too far back, the Magnum-F's in-between position often proves to be just right. Inside, the Magnum-F benefits from the same durable componentry found in many of today's hardest hitting OEM muscle and sports cars. Over the T-56, the Magnum-F transmissions boast increased face-width on all gears, a robust combination of double and triple cone synchronizers, enhanced webbing in the main case, provisions for a cooler circuit, and more! Tremec also took the opportunity to upgrade the shifter to an isolator-type unit, like that found on its Magnum XL. The shifter reduces in-cabin noise and vibrations, while at the same time providing the precise and communicative shift feel that all Magnums are known for. And, like all Tremec aftermarket transmissions, the Magnum-F is made from 100 percent brand-new OEM-quality content. Models with different gear ratios are available. Additional notes: * Close Ratio version for high performance street and road racing * 700 lbs.-ft. of torque capacity * Reasonably light at 135 lbs. dry * Multiple shifter locations and dual speedo pickups for unmatched versatility * Choice of two different gear ratio sets with unique double overdrive ratios * Incredibly short, extremely low-effort shift throws, with crisp, precise engagement * Modern OE supercar technology for the ultimate pro-tourers, road-racers, and more
( 11 )
$3,545.00
Chevrolet Performance 480 hp LS3 engine controller kits include all of the components required to run your Chevrolet Performance Parts crate engine. They include an engine harness, a mass airflow meter with a mounting boss, oxygen sensors (2) with weld-in bungs (2), an accelerator pedal assembly, and a detailed instruction sheet. The kits have been specially preprogrammed for retrofitting a late model 6.2L LS3 Chevrolet engine in your street rod, hot rod, or muscle car.
( 1 )
$2,167.43
Summit Racing™ Pro LS 6.0L forged rotating assemblies provide industry-leading fit, finish, and durability at an affordable price. These kits are tested to over 1,200 hp in turbo applications. They're available in a wide range of fitment and performance options. Standard features and specs may include: * 4340 forged steel crank * Core hardened to optimum strength, tempered, and nitride hardened * Lightening rod journals, gun-drilled mains, and profiled counterweights for better engine acceleration * Maximum journal tolerances of +/- .0001 to ensure consistent bearing clearance * Straight-shot oiling for maximum oil film strength at the maximum load angle * 4340 forged H-beam connecting rods * Designed for 5,000 ft./min. average piston speed in street and drag applications * 7/16 ARP 2000 rod bolts with 200,000 psi tensile strength; dual ribbed caps for maximum strength * Added stroker clearance and balanced to within +/- 1 gram per end * Full-floating and precision-honed in the USA to +/- .0001 in. * 2618 forged aluminum pistons * Ultra-modern 2618 alloy forgings for boost and nitrous with maximum ring land thickness * Pressure-fed pin oiling with durable chromium steel wrist pins * Specially profiled and coated piston skirts for stroker applications with tight piston-to-wall clearance * Generous valve reliefs for extra piston-to-valve clearance accommodate cathedral and rectangle heads * Premium steel piston rings * Steel top rings designed for maximum life with boost and nitrous * File-fit rings for maximum ring seal, reduced friction, and tensions optimized for wet sump engines * Martensitic ductile Napier-hook second rings for strength and maximum oil control * Premium main and rod bearings * Clevite H-bearings are designed for high-rpm operation in racing applications * Tri-metal bearings designed with high bearing crush for maximum retention * Medium eccentricity shells with precision wall tolerance of +/- .00015 in.
( 8 )
$2,561.87
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$2,850.87
ATK High Performance Chevy LQ4 6.0L 460 hp long block crate engines lay down impressive power that can be run with factory fuel injection or retrofitted with a carburetor. They're hand-built, balanced, and blueprinted using top-quality parts. Don't waste time trying to salvage a high-mileage short block when you can get a fresh mill that's ready for your choice of components to make it your own. ATK Chevy LQ4 6.0L 460 hp long block crate engines include: * Handpicked and seasoned 6-bolt main block * Aligned and honed main bores * OE steel crankshaft * 3.622 in. stroke * OE connecting rods * Hypereutectic dish top pistons * Aluminum cylinder heads * Hydraulic roller camshaft * Timing chain and gear set * 1.7:1 ratio rocker arms * 24-tooth reluctor
( 10 )
$5,049.99
Recommended for aggressive street/strip builds with displacements up to 427 c.i. operating at or below 7200 rpm. Capable of flowing 328 cfm at 0.650 in. lift with a 4.000 in. bore size. AFR street legal 230cc LS1 Mongoose strip cylinder heads are specifically designed for Gen III Chevy Corvettes, Camaros, and trucks. LSX cylinder heads offer unmatched flow performance and feature 2.080 in. intake and 1.600 in. exhaust valves with their ductile iron interlocking valve seats. Mongoose strip heads are available with 62cc, 65cc, and 72cc combustion chambers. Structural features like AFR's trademark 3/4 in. thick head deck, a must for blown and nitrous applications, reinforced rocker stud bosses, and thick wall runners provide unparalleled durability. An exclusive new modern combination chamber design with a double quench pad area helps the LSX generate huge low and mid-lift airflow numbers.
( 7 )
$3,332.70
Eddie Motorsports LS S-Drive serpentine pulley drive systems for Chevrolet LS engines are the latest advancement in engine accessory kits on the market. These drive system pulleys and brackets are CNC-machined from 6061 T-6 aluminum and include stainless steel fasteners, as well as other necessary accessories: water pumps, alternators, serpentine belts, A/C compressors, billet aluminum water outlet, and a SFI approved balancer. Change the efficiency of your engine with a single 6-rib serpentine belt to drive all of your accessories.
( 4 )
$2,495.00
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$2,725.00
FTI Performance Pro Powerglide Level 5 transmissions are an unbreakable unit in an SFI-approved case. Equipped with the FTI creatively designed spiral springs and valve body, these units don't creep when the brake is set—a must in today's racing world. With in-house machining, these trannies are hand-assembled by one builder, so each clearance is set to exacting tolerances. The transmissions house the greatest advances in powerglide racing technology, and they're designed to withstand the rigors of today's high performance engines in an extremely demanding environment. Other features include: * 1500 advertised horsepower rating * Protree transbrake 250 lbs. * Lightened steel clutch hub * 1.80 straight cut planetary * Vasco input shaft * 8-clutch drum * Red race clutches * High-flow pump * 4340 output shaft
( 3 )
$4,899.00
Chevrolet Performance Parts LS controller kits have everything that you need to properly tune your Chevrolet Performance Parts crate engine. Kits include: * ECU * Engine wiring harness * Mass airflow meter * Mass airflow meter mounting boss * Accelerator pedal assembly * Two oxygen sensors with mounting bosses * Detailed instruction sheet
( 1 )
$2,167.43
Summit Bucks
Summit Racing™ SPC Engine Blocks are aftermarket V8 Engine Blocks made for "Street, Performance, or Competition." These brand 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
( 11 )
$3,349.99
Eagle Street and Strip rotating assemblies consist of name-brand quality components for a wide range of engines at an affordable price. These kits feature a crankshaft, pistons, piston rings, rod and main bearings, and connecting rods. Based on your application, balanced assemblies are also available. Order the model designed for fitment on your year/make vehicle and engine application.
( 86 )
$2,736.99
On Sale
B&M remanufactured Street and Strip transmissions are put together with new gaskets, bushings, seals, thrust washers, high performance friction materials, and gold zinc plated hardware. The front pump is rebuilt to B&M specs and the valve body is recalibrated. They're built for extreme conditions and are perfect replacing a worn transmission, cruising, and racing.
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$3,749.95
$3,373.95
Dart SHP Special High Performance LS Next Pro cast iron bare blocks continue the evolution of their LS Next platform with superior strength. With full skirt designs, priority oiling systems, and other excellent features, these SHP LS Next Pro blocks are the perfect upgrades for your factory LS blocks, as well as ideal starting points for drag racers, circle track competitors, off-roaders, and high performance marine enthusiasts. Dart SHP LS Next Pro cast iron bare blocks feature: * Superior strength 220 BHN cast iron * Steel 4-bolt main caps with upgraded ARP main studs * Lifter oil crossover with restrictor provision * 6-bolt per cylinder capability * 4.000 in. up to 4.185 in. bore * Factory oil filter provision * 8-counterweight machining * Full skirt design * Priority main oiling * Siamese cylinder bores * Thick decks ensure reliable head gasket seal
( 1 )
$4,699.99
AFR 260cc LS3 Mongoose cylinder heads are 100 percent 5-axis, CNC-ported, and feature titanium retainers, A356 aluminum castings, and Pac Racing springs. These CARB certified heads require 4.000 in. or larger bore applications on up through 454 cu. in. engines operating at or below 7,000 rpm—and flow over 380 cfm at 0.700 in. lift and are designed primarily for street and strip applications. Other structural features include Air Flow Research's trademark 3/4 in. thick head deck, reinforced rocker stud bosses, and thick wall runners provide unparalleled durability. Use of AFR stud girdles and full roller rocker arms are required. When it comes to building power, start with these AFR 260cc LS3 Mongoose cylinder heads.
( 5 )
$3,490.20
American Powertrain ProFit Tremec TKX manual transmissions and installation kits put the power to the pavement with unmatched durability and versatility. Tremec has normally sourced their aftermarket transmissions from the OE side, such as the Magnum T-56 and the T-5, but this new design is made from the ground up as a strictly aftermarket transmission. Designed to fit classic muscle cars and customs, the TKX has a tighter, more streamlined case, and features 600 lbs.-ft. of torque capacity and are capable of engines speeds of 8,000 rpm with shifts at 7,500 rpm. The compact design provides clearance in most transmission tunnels without floor modifications, while case strength has increased from previous models with the new 3-piece aluminum housing and gaskets at all flanges simplifies installation and eliminates fluid leaks. Additional features include: * Designed with your specific vehicle application in mind * Available with multiple gear ratio configurations for compatibility for multiple applications with three shifter locations * Multi-cone synchronizers and synchronizer rings are made of sintered bronze and carbon for superior shifts * All gears are supported by caged needle bearings to reduce end play * Gears and shafts are made from ASTM 4615 grade steel and provide increased torque carrying capacity * TKX manual transmissions have 31-spline output shafts for added strength, built-in reverse light switches, and cruise control safety switches * The TKX also has separate GM and Ford case patterns and input configurations—with integrated GM and Ford transmission mount patterns * Installation kits include a driveshaft slip yoke made from cryogenically hardened steel, a polyurethane transmission mount, a steel roller pilot bearing, and a reverse light wiring harness
( 1 )
$4,095.00
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$4,559.95
Summit Bucks
ACDelco GM Genuine Parts superchargers are designed, engineered, and tested to rigorous standards, and are backed by General Motors. They are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Make the right choice for your GM vehicle; choose ACDelco GM Genuine Parts superchargers.
Not Yet Reviewed
$2,206.99
These Chevrolet Performance Parts LS 376/525 hp engine controller kits are designed for controlling your GM LS 525 hp engine. They include a new controller, engine harness, mass airflow meter, mass airflow meter mounting boss, accelerator pedal assembly, two oxygen sensors, two oxygen sensor mounting bosses, and an instruction manual.
( 1 )
$2,225.39
Wilwood forged narrow Superlite 6R Big Brake front brake kits upgrade your late model ride with increased brake capacity and complimentary style. They're application-specific for a simpler installation and offer full compatibility with OE master cylinder output and ABS functions, where used. These front brake kits feature the extremely durable and efficient body design of their forged narrow 6-piston radial mount calipers. You can choose from optional caliper finishes and rotor designs to meet your personal style and braking requirements. Don't just replace—upgrade to generate big stopping power with Wilwood forged narrow Superlite 6R Big Brake front brake kits.
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$2,155.71
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$2,330.34
On Sale
All American Billet Silverline Series serpentine kits are designed to give any engine an aggressive black style, highlighted by machined finished areas for a truly standout look! These kits come standard with high performance accessories. Enjoy a no-hassle installation with all the hardware and necessary components included in the box. A variety of setups are available to fit models with or without power steering and air conditioning. Dozens of models are available; order the kit recommended for your vehicle and engine application.
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$2,895.00
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$3,395.00
$2,745.00
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$3,245.00
Vintage Air offers all-in-one Front Runner engine drive systems for your LS Chevy! Focusing on race technology and performance, their LS Front Runner systems provide a more dependable serpentine belt design in a super compact block mounted package. Being the smallest component package available, engine swaps into older vehicles is a lot easier! Vintage Air drive systems are available for power steering with or without pump and non-power steering applications in your choice of bright or black hard coat finishes. Vintage Air LS Front Runner systems may include: * CNC-machined billet truss-type mounting bracket * High performance water pump * Delphi-Saginaw power steering pump * 140 amp alternator * Optimized-ratio aluminum pulleys * ATI harmonic balancer * ARP polished stainless hardware * Dayco serpentine belt and OEM tensioner * Compressor clutch and tensioner covers
( 7 )
$3,255.99
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$3,361.99
Griffin Performance Fit combos offer the right fit with the right performance--and the right price! These high performance combos deliver cooling capability for extreme horsepower mixed with modern styling, do-it-yourself installation, and American craftsmanship. In these perfect combinations, Griffin packages their lightweight aluminum radiators constructed with 1.25 or 1.50 in. induction-welded MegaCool tubing, high performance electric fans, hand-formed aluminum shrouds, wiring harnesses, and radiator caps for a complete install. Choose the style and size needed to equip your ride with the ideal solution for engine temperature control--Griffin Performance Fit combos. * Griffin Performance Fit radiator combos may require modifications for installation. * See Griffin Exact Fit radiator combos for installation with no modifications.
( 234 )
$2,130.00
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$2,331.00
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