$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT

$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT

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

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Results 1 - 24 of 86

On Sale

Summit Racing™ Performance LS7 Hydraulic Lifters

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!

4.21 out of 5 stars ( 19 )

$229.99


$204.99

On Sale

Summit Racing™ LS Lifter and Guide Kits

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.

4.51 out of 5 stars ( 41 )

$266.98


$241.98

On Sale

Range Technology AFM/DFM Disabler Devices

All cylinders, all the time! Get the most out of every mile with a Range Technology AFM/DFM Disabler Device. These modules allow your V6 or V8 GM vehicle to run in full cylinder mode at all times. This patented technology is the only product that will disable AFM or DFM without reprogramming the factory ECU. You get full power delivery all the time without factory warranty concerns. Additional features: * No more shuddering or dropping cylinders * Fast and easy setup; simply plug into your onboard OBD-II port and it instantly begins working to eliminate the AFM or DFM system * No tools needed; simply remove to uninstall * All-terrain power and control in any situation—bad weather, off-road, and carrying heavy loads * Safe and reversible: leaves no trace; unplug it to return to factory settings * Fits all V6 and V8 General Motors AFM/DFM vehicles, including cars, trucks, and SUVs * Device is available in multiple color options

4.73 out of 5 stars ( 215 )

$259.95


$233.95

On Sale

DiabloSport PredatorX Tuners

DiabloSport PredatorX tuners deliver the latest in tuning technology, allowing you to take control of your tuning needs from your smartphone. The iOS/Android compatible apps pair with the PredatorX dongle to give you complete tuning access from your pocket. The OBDII dongle can stay connected to the vehicle full time, so you're always just seconds away from being able to make tuning changes. The tuners are preloaded with power adding tunes for multiple octane levels, as well as transmission tunes for applications where they are needed. For those seeking more than the provided tunes offer, there is a plethora of end user based parameters that can be adjusted. Speed limiter, tire size, timing and fueling at wide-open-throttle, rev limiters, idle speed and so much more can be adjusted through the PredatorX. Features: iOS and Android support Tune from your smartphone! Preloaded with Performance tunes Trucks get tunes for 87 octane and Premium fuel Performance cars get tunes for 91 and 93 octane fuel TCM tunes are included End user adjustable parameters Disable AFM! Calibrate Speedometer for Taller Tires Set axle ratio if you've swapped gears Remove Speed Limiter Adjust Idle Speed Raise Rev Limiters Live data monitoring Read/Clear Diagnostic Trouble Codes (DTCs) Adjust options like idle, speed limiters, rev limiters, tire size, gear ratios and more. Support for 07-18 GM gas trucks and SUVs, 05-19 Corvette, and 10-24 Camaro V8, and more!

3.86 out of 5 stars ( 14 )

$295.95


$266.35

On Sale

ACCEL Extreme 9000 Ceramic Spark Plug Wire Sets

ACCEL Extreme 9000 ceramic wires are the cure for burnt spark plug boots. These wires provide excellent energy delivery while providing the highest level of RFI/EMI suppression. They're ideal for custom engines, boats, and RVs—plus great trackside accessories when you need to make up a replacement wire. ACCEL Extreme 9000 ceramic spark plug wire sets are available straight or in right-angle configurations. Order the set recommended for your vehicle and engine application. More product features include: * Finished with stainless steel spark plug terminals and ceramic spark plug boots * Each wire features ultra-high temperature double silicone wire rated at 600 degrees F * Ferro-Spiral core wire developed for performance use * Capable of withstanding up to 2,000 degrees F

4.43 out of 5 stars ( 463 )

$172.95


$147.95

On Sale

Holley Sniper Throttle Bodies

With Holley Sniper throttle bodies, Holley engineers went back to the drawing board to build the ultimate air valve for your engine! They feature enlarged bore sizes, allowing for increased airflow to support your higher horsepower needs. A progressive throttle pulley enhances low-speed drivability, and a double return spring provides solid and secure throttle control feel. These units are maximized for your application, with a 4-bolt style mounting pattern; most models include bolts and gaskets. Order the throttle body designed for fitment with your year/make and engine family.

3.92 out of 5 stars ( 39 )

$249.95

$349.95


$192.95

$241.15

On Sale

Holley EFI Fuel Rails

These machined aluminum EFI fuel rails are capable of handling 1,100+ hp engines. They feature a large inner diameter bore to decrease fuel pressure drop and help cancel out back pulses.

4.41 out of 5 stars ( 54 )

$228.95

$249.95


$206.05

$224.95

On Sale

Mr. Gasket Automatic Transmission Oil Pans

These automatic transmission oil pans from Mr. Gasket are stock-depth chrome plated pans. They come complete with a washer and gasket and most have drain plugs.

4.21 out of 5 stars ( 91 )

$126.95


$114.25

On Sale

Hays Heavy-Duty Flexplates

Hays heavy-duty flexplates for high performance and competition engines are constructed from a thicker-than-stock steel plate. This enables them to withstand the stress of high-stall torque converters and high-rpm engines. While factory stock plates tend to crack around the crankshaft hub when punished under high-torque and rpm conditions, the thicker Hays flexplates can handle the force. These heavy-duty flexplates are supplied with a ring gear that is securely welded in place. All Hays heavy-duty flexplates are zinc-dichromate plated to resist corrosion and SFI-certified under specification 29.1.

4.16 out of 5 stars ( 63 )

$205.95


$185.35

On Sale

Summit Racing™ Fabricated Intake Manifolds

A properly fabricated intake manifold can produce significant gains in your engine's performance. Add one of our Summit Racing™ fabricated intake manifolds to your engine combination to make more power! Each of these stock/OEM deck engine block style intake manifolds is manufactured to exacting standards utilizing the latest CNC machining and fabricating equipment. Simply find and order a perfect fit for your specific make and model vehicle.

3.21 out of 5 stars ( 29 )

$349.99

$429.99


$249.99

On Sale

Holley LS Steam Vent Kits

Holley LS steam vent kits prevent hot spots or overheating. Designed to eliminate trapped air and steam from your engine, these complete kits are available to plumb your engine and include the appropriate hose and hose ends to make installation a breeze. They are more attractive than the OEM lines and offer increased flexibility when using aftermarket intakes and other accessories on your performance vehicle. Holley LS steam vent kits may feature: * Adjustable pivoting steam vent adapters * Black push-on or stainless braided Speed-Flex hose and hose ends * Available in front or 4-corner plumbing options

4.91 out of 5 stars ( 11 )

$170.95


$153.85

On Sale

Spectre Performance Cold Air Intake Kits

Spectre Performance cold air intake kits provide better acceleration and fuel economy for your truck or SUV. They're designed to replace your factory air filter and air box assembly, eliminating the restriction as they smooth and straighten airflow. The high-flow design of these intakes enables your engine to breathe in a larger volume of air, resulting in more usable power throughout the engine's entire rpm range. Hundreds of models are available, with various tube and filter options. Choose the kit tailored for fitment and performance on your make/model application.

4.35 out of 5 stars ( 832 )

$199.99


$174.99

On Sale

Hooker Blackheart A/C Evaporator Side Covers

Hooker Blackheart A/C evaporator side covers allow the use of A/C without moving the engine forward. Created for use with LS engine swaps, their compact design is manufactured from cross-linked polyethylene, which is extremely durable and chemical-resistant to ensure long life. Hooker Blackheart side covers can also be used as replacement covers, or with other engine swaps where maximum clearance is desired.

4.16 out of 5 stars ( 19 )

$176.95

$189.95


$159.25

$170.95

On Sale

Taylor 409 Race-Fit Pro Race Spark Plug Wires

Bigger, better wire! Taylor 409 Race-Fit Pro Race spark plug wires start with Taylor's 8mm wires (available in spiral-wound or solid core) with a silicone inner insulator, fiberglass braid, and a 100 percent pure silicone jacket. Then they add a heat-treated fiberglass mesh skin and a third layer of pure silicone to get a full 10.4mm diameter. Taylor bonds pure silicone boots directly to the wires. The results are wires that have a 100,000+ V dielectric strength rating that gets more spark to your plugs.

4.61 out of 5 stars ( 157 )

$114.05


$102.64

On Sale

Holley Sniper EFI Fuel Rails

Holley Sniper EFI fuel rails hit the mark every time--on time! It's not enough to shoot fuel to your injectors; the process must be consistent and precise for efficient engine performance. Holley Sniper kits will deliver the performance, and they feature billet aluminum rails with a black anodized finish and a laser-engraved Sniper logo. If your target is the optimum delivery of fuel, equip your manifold with Holley Sniper EFI fuel rail kits.

3.88 out of 5 stars ( 40 )

$189.95

$212.95


$170.95

$191.65

On Sale

Holley Ignition Coil Extension Harnesses

Designed to extend your factory coil harness so you can easily remote-mount your ignition coils, these wire assemblies by Holley provide an ideal solution for cleaning up the look of your engine bay. They provide the means for mounting your ignition coils off the valve covers with their OEM connectors that provide a secure connection between your ECU and coils. Get the customization you want with the Holley ignition coil extension harnesses designed for your application.

5.0 out of 5 stars ( 1 )

$126.95


$114.25

On Sale

Holley LS Engine Air Conditioner Brackets

Holley LS engine air conditioner brackets are designed to help you mount your A/C compressor and tensioner in the correct position. They include the necessary hardware to mount the assembly in place—and require an application-specific installation kit, sold separately. Holley cast aluminum brackets are available for a variety of compressor styles. Choose the model needed for your application.

4.21 out of 5 stars ( 29 )

$236.95

$363.95


$167.95

$244.75

On Sale

Holley Universal Ignition Harnesses

If your vehicle's main wiring harness doesn't have COP (coil-on-plug) trigger wires, you can simply upgrade to one of Holley's universal ignition harnesses. They're specially designed to install coil-on-plug or coil-near-plug coils on Holley EFI systems into Holley Smart Coil ignition sub-harnesses or GM LSx coil harnesses. These harnesses are ideal for use with Holley HP or Dominator ECUs, but are compatible with other EFI systems, as well. Extra pins are provided for both the metripak and ECU ends, if you decide to shorten the harnesses. Caution should be taken to ensure coil trigger wires are installed in their correct pin locations to prevent engine misfire. Make certain your EFI system fires right every time with Holley universal ignition harnesses.

Not Yet Reviewed

$187.95


$169.15

On Sale

DiabloSport AFM Disabler Devices

DiabloSport AFM disabler devices allow for maximum power and vehicle performance by disabling the factory Active Fuel Management (AFM) feature that drops cylinders and reduces power. They are compatible with GM vehicles built from 2005 to current that have AFM. With an easy installation--just plug them into the OBDII port under the dash and drive--you can eliminate hesitation on acceleration and the annoying exhaust buzz caused by AFM activation. You can stay in V8 mode at all times without reprogramming or re-flashing the vehicle's onboard computer (ECU).

4.74 out of 5 stars ( 58 )

$249.95


$224.95

On Sale

Flowtech LS Turbo Headers

Flowtech LS turbo headers improve smooth-flow engine breathing and increase cylinder scavenging effect by providing consistent tubing diameters. Constructed of heavy-duty, 16-gauge stainless steel, they're available in natural, black painted, and ceramic coated finishes. These headers offer 1 3/4 and 1 7/8 in. tubing diameters for increased exhaust flow, increased performance, and improved throttle response. A 3 in. collector provides additional strength and durability.

3.81 out of 5 stars ( 27 )

$290.95

$449.95


$239.95

$261.85

On Sale

Holley LS Engine Accessory Drive Kits

Holley LS engine accessory drive kits offer simple, clean, cost-effective solutions when swapping a GM LS engine into a muscle car, truck, hot rod, or any other vehicle. These bracket kits deliver a factory-style appearance, correct belt alignment, and factory stability. They fit virtually all common LS engines, regardless of water pump and harmonic balancer offsets—reducing cost and complexity. Holley LS engine accessory drive kits position the A/C compressor high above the crossmember, but below the hood line, for an easy installation. The brackets are manufactured from diecast aluminum with a natural, polished, or black finish. (An application-specific installation kit is required, but sold separately.)

4.33 out of 5 stars ( 52 )

$171.95

$469.95


$121.95

$258.95

On Sale

Holley HP EFI Smart Coil Sub Harnesses

Holley HP EFI smart coil sub harnesses contain two preterminated harnesses designed to work with Holley HP smart coils used on 8-cylinder engines. One end plugs directly into the Holley smart coil, and the other end features a 7-pin Metri-Pak connector that plugs into the Holley universal coil-on-plug harness (HLY-558-307, not included), Holley LSx main harness, or factory GM LSx harnesses.

4.5 out of 5 stars ( 4 )

$286.95


$258.25

On Sale

Professional Products LSX High Performance Coil Packs

Give some more spark to your ignition system using these Professional Products LSX high performance coil packs. They provide a maximum voltage of 40 kV and the longest spark duration available. The coil packs fire 1/8th as many times as the old single coil systems, providing eight times as long for the coil to regenerate power for the next spark. On multiple coil setups like these LSX high performance packs, longer spark duration is highly desirable to ensure that 100 percent of the intake charge is ignited—for maximum power throughout the entire rpm range.

3.53 out of 5 stars ( 19 )

$176.99

$296.99


$159.29

$267.29

On Sale

Hooker Blackheart Engine Swap Motor Mount Kits

Add more cubic inches and power to your vehicle with the help of Hooker Blackheart engine swap mount kits. The kits are available for most popular models of cars and trucks with a variety of popular engine sizes. They include all of the components you'll need, at a cost that won't break your budget.

4.25 out of 5 stars ( 69 )

$199.95

$330.95


$179.95

$215.05

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