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CHEVROLET Chevy small block Gen III/IV (LS-based engines) Air & Fuel Delivery

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Results 1 - 24 of 112

ACDelco GM Genuine Parts Fuel Injection Throttle Bodies

ACDelco GM Genuine Parts fuel injection throttle bodies are GM-recommended replacements for your vehicle's original component. It is located on the intake manifold, and contains the throttle plate(s) that control the air entering the engine. The throttle body also houses the fuel injector(s) on Throttle Body Injection (TBI) or Central Fuel Injection (CFI) systems. These true OE fuel injection throttle bodies have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

4.84 out of 5 stars ( 37 )

$262.99

$290.99

Walbro Electric In-Tank Fuel Pumps

Walbro electric in-tank fuel pumps are available in a variety of flow ratings, including pumps that flow significantly more fuel at higher pressure. The outside dimensions, however, of many pumps are compact enough to fit existing hanger assemblies, without modification. All pumping components have been validated to OEM specifications for use in E85/flex fuel applications. Most Walbro in-tank fuel pumps utilize a proven gerotor design. Some high-performance models, including those designed for engines with more than 750 hp, feature a dual-channel turbine design for maximum efficiency in high-pressure and high-temperature applications. The blades feed two high-pressure pumping channels, as opposed to a conventional single-stage pump that uses an impeller with a single row of blades at its outer edge. This innovative design results in improved hot fuel flow, as well as minimal noise and current use, resulting in efficiency that's higher than conventional pumps. Some pumps require modifications to system wiring, fuel lines, and the fuel module, and should be professionally installed. Installation kits including a fuel strainer, fuel hose, harness pigtail, clamps, and wire connectors are sold separately.

4.45 out of 5 stars ( 370 )

$271.99

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 )

$267.95

$320.95

Summit Racing™ Max EFI LS Intake Manifolds

Our Summit Racing Max EFI LS intake manifolds feature a curved edge design with a large 9.7-liter plenum, for maximum flow and horsepower. They are available in both tall and low-profile, and satin or black anodized finishes. They include gaskets, mounting hardware, and a billet fuel rail kit.

2.89 out of 5 stars ( 9 )

$499.99

DeatschWerks Fuel Injectors

DeatschWerks fuels your passion for performance with fuel injectors specifically designed and engineered for your Sport Compact, Modern Muscle, and European vehicles. DeatschWerks fuel injectors are manufactured to fit your OE harness, fuel rail, and manifold. Because they are application-specific, you'll spend less time installing and tuning, so you can spend more time enjoying the increased performance of your ride! They provide an excellent spray pattern and atomization for optimized idle and tuning. Each set is flow-matched both statically and dynamically, and flow-balanced to within one to two percent. A flow report is included with each set of DeatschWerks fuel injectors.

4.68 out of 5 stars ( 66 )

$449.00

$539.00

Granatelli Motor Sports Throttle Bodies

Granatelli Motor Sports is proud to offer a variety of performance throttle bodies for late model, drive-by-wire engines. Their throttle bodies are precision-machined to exceed the demands required for increased airflow on high performance applications, both naturally aspirated and forced induction. These upgraded throttle bodies can be used with factory or aftermarket manifolds and utilize the OEM harness connector. The increased size also allows for smoother and quicker engine acceleration--and there's no need to transfer anything over from the factory unit. Proper tuning is highly recommended after installation. Granatelli throttle bodies are available for hundreds of vehicles from the 1990s and up.

3.4 out of 5 stars ( 10 )

$423.94

$673.31

S&B Filters Cotton Filter Cold Air Intake Kits

S&B Filters cotton filter cold air intake kits are designed to improve airflow and bring down the temperature of the air that enters your engine. To achieve more airflow S&B oiled cotton filters are built with four or eight layers (for diesels) of the highest-quality cotton gauze. They use deeper and wider pleats with more pleats per filter. Plus, their manufacturing process yields filters with almost no "bleed", creating a greater open surface area. All of this adds up to more surface area per filter, and that means more airflow with excellent protection. All S&B cotton air filters are washable and reusable and will protect your engine from harmful dirt and debris. Your rig will not only gain performance, but also a sporty high-tech appearance under the hood. In addition, the filters and couplers are made with silicone rubber, not urethane, to help ensure they won't degrade or crack and can resist temperatures as high as 400 degrees F. These intake kits are simple to install, and the great looking signature clear lid allows visual inspection of your filter at all times. Remember, there are good air intakes … and then there are the better intakes--demand the better; choose the efficiency and style of S&B Filters cold air intake kits. Features include: * Helps balance air/fuel ratios to improve gas mileage * Specially-crafted cross-linked intake tube minimizes restriction * Custom air box keeps loose dirt and turbulent underhood air out of your intake * Custom-made for your specific year, make, and model * Easy-to-use installation instructions and illustrations * With the included mounting hardware, replaces your stock tract in 30 minutes or less

4.69 out of 5 stars ( 432 )

$349.00

Top Street Performance Standalone Fuel Injection Wiring Harnesses

An LS engine swap is a no-brainer when it comes to adding some affordable horsepower to a project car. Unfortunately, any swap comes with its share of headaches, including wiring—and that's where Top Street Performance standalone fuel injection wiring harnesses come in. TSP offers three harnesses for drive-by-wire/drive-by-cable applications and they include a fuse block and all the connectors for a headache-free install. Order the harness recommended for your system.

Not Yet Reviewed

$444.44

Nick Williams Performance Cable-Driven Throttle Bodies

Nick Williams Performance cable-driven throttle bodies are precision CNC-machined from aluminum to provide easy tuning and idle calibration. They feature a larger opening (92mm or 102mm) to provide maximum airflow and improve throttle response. The throttle bodies are designed for use on FAST or other aftermarket intakes with 92mm openings.

4.5 out of 5 stars ( 16 )

$435.00

$469.95

Chevrolet Performance Intercooler Water Pumps

What is your engine wearing? Dressing your Chevy engine with a genuine Chevrolet Performance intercooler water pump means getting the fit and function you know will produce the desired results. These durable fluid pump assemblies are quality-built to outfit your supercharged engine with effective cooling and efficient operation. For upgrade or replacement, maintain your engine's red carpet performance by choosing parts tailor-made to fit—a Chevrolet intercooler water pump.

5.0 out of 5 stars ( 1 )

$702.99

FAST Big Mouth LT Throttle Bodies

FAST Big Mouth LT throttle bodies are cost-effective and stylish. If you don't want to go billet or can't afford it, these throttle bodies are the perfect choice for a variety of applications. An enlarged bore allows for increased airflow to support your higher horsepower, a progressive throttle pulley enhances drivability--especially at low throttle--and a double return spring provides a solid feel and increased safety. Here's an excellent alternative with all of the same features as their billet bodies--FAST Big Mouth LT throttle bodies with black wrinkle powdercoating.

3.78 out of 5 stars ( 9 )

$332.95

$346.95

Edelbrock Victor Jr. Carbureted Intake Manifolds

Edelbrock Victor Jr. carbureted intake manifolds are capable of supporting up to 600 hp. They accept a standard 4-barrel square bore carburetor. The manifolds are made of high-quality aluminum and feature a natural finish. The required electronic timing control module is sold separately .

4.33 out of 5 stars ( 9 )

$432.95

$476.95

On Sale

Holley EFI LS Single Plane Mid-Rise Intake Manifolds

Holley EFI LS single plane mid-rise intake manifolds are great for your higher horsepower engine. Featuring cast aluminum construction, these manifolds are also great for centrifugal blower, turbocharged, or NOS mild power adder applications. The efficient casting design is lightweight--11.5 lbs.--with consistent wall thickness and strong mounting flanges. The optimized runner layout and constant cross sectional area offer a broad torque curve, with the best vehicle performance from 2,500 to 7,000 rpm. The mid-rise design offers minimum carb mounting flange height--without sacrificing power--and is another plus for vehicles with minimum hood modifications. Holley EFI LS single plane mid-rise intake manifolds include zinc-plated hex head cap mounting bolts and washers, pipe plugs to block manifold vacuum and MAP sensor ports, and Viton® O-ring cylinder head mounting flange gaskets for an OEM-style seal.

4.22 out of 5 stars ( 9 )

$499.95


$274.95

$499.95

Cold Air Inductions Intake Systems

Cold Air Inductions intake systems have a simple goal--maximizing your vehicle's performance by keeping your intake air as cool as possible! First, every CAI intake is specifically designed and engineered for the vehicle it is sold for, resulting in maximum performance, an easy install, and a perfect fit. Next, their intakes are made of high-quality aluminum--not heat-absorbing plastic. Their intake tubes have a ceramic coating both inside and out to reduce heat soak, as well as to keep radiant heat from penetrating the intake air. And they've applied 3/8 in. thermal insulation inside the air box to prevent heat transfer from the engine bay. Each cold air intake is TIG-welded by hand and powdercoated, plus the air box lids feature a clear viewing window for easier filter inspection. What should a high performance cold air intake system look like? Just like Cold Air Inductions intake systems! Additional features include: * High performance lifetime air filters provide protection with minimal airflow restriction * Black couplers and elbows made from 4 or 5-ply silicone rubber for durability * Entire system meets OEM standards and requirements * Stainless steel clamps and fasteners * Direct replacements for factory air intakes--no tuning required * Everything needed for installation is included * Many systems are available with your choice of near-chrome or textured black powdercoat * Most systems are direct replacements for the OEM air box--no modifications required and the OEM washer bottle is retained in the stock location

4.75 out of 5 stars ( 178 )

$299.99

$399.99

FAST LSX High-Flow Billet Fuel Rails

FAST LSX high-flow billet fuel rails feature a larger internal diameter that is designed to dampen the pulses and provide increased fuel volume, ensuring that your fuel injectors never run dry. They are manufactured from high-strength billet aluminum and are red anodized for maximum durability. These fuel rails include aluminum black anodized -8 AN fittings and "super-seal" O-rings that are component-matched to maximize fuel distribution. Upgrade your fuel system while adding some horsepower with these FAST LSX high-flow billet fuel rails.

3.21 out of 5 stars ( 29 )

$255.95

$297.95

FAST LSXR OEM Fuel Rail Kits

FAST LSXR OEM fuel rail kits will help maintain optimum fuel flow to your EFI system. They are designed for use with the FAST 102mm intake manifolds and include all fittings and attachments for a direct bolt-on fit.

4.8 out of 5 stars ( 5 )

$369.95

$376.95

Summit Racing™ Universal LS-Style Fuel Systems

Generation III and IV small blocks are perhaps the most popular LSx engines for swapping--and the powerful GM V8s require equally effective fuel delivery. Summit Racing™ universal LS-style fuel systems incorporate both the fuel filter and regulator into one efficient, affordable unit. These 255 lph fuel pumps channel a precise 58 psi of juice to the "dead head" fuel rails inlet, returning any excess from the filter back to your tank. It's a system very similar to those used in factory LS performance cars, a simple fuel solution for car and truck owners who jettison their stock powerplant for a coveted LS. Summit Racing™ universal LS-style fuel systems also include 20 ft. of braided fuel line, as well as -6 AN inlet and outlet fittings in a black or blue anodized finish. (The kits are intended for use with a fuel cell or modified/aftermarket tank with AN outlets and returns.) Summit Racing™ also offers the filter and fittings in a smaller kit for those who don't need the entire system.

3.67 out of 5 stars ( 6 )

$312.37

Dorman Throttle Bodies

Restore proper engine function with Dorman throttle bodies. These electronic assemblies will maintain the correct volume of airflow into your engine. Each of these units features a butterfly valve, which is electronically controlled by the ECU to precisely open and close for the correct regulation of the fuel/air mixture. Many feature cast aluminum housings with an exact fit for an easy installation. Dorman throttle bodies offer durable, reliable performance that is essential to the operation of your engine.

4.25 out of 5 stars ( 16 )

$289.99

$369.99

VaraRam VR-SC1R Z06 Snake Charmer Ram Air Systems

Take a racing unit, make some precise modifications, test and you have an efficient high performance system at all speeds-- VaraRam VR-SC1R Z06 Snake Charmer Ram Air systems. With the input and testing of race teams, top tuners and VaraRam's relentless research and development program they developed one of the most powerful ram air systems for your Z06. Made of high quality cross link material for strength and longevity, these VR-SC1R Snake Charmer systems have a billet air meter and a reusable custom designed green filter with deeper pleats and more pleats per inch with open peaks and valleys for increased air flow showing up in lots of torque! Your friends will be in a trance as you shoot out of corners with the VR-SC1R Snake Charmer under your hood. Peak performance for your Z06 from VaraRam.

3.83 out of 5 stars ( 6 )

$468.99

ICT Billet Hi-Ram Lid Spacers

Maximize your car's potential with ICT Billet Hi-Ram lid spacers. Constructed of billet aluminum, they allow a larger volume of air inside the plenum on Holley Hi-Ram intake manifolds. More air means more power. All of the necessary hardware is included to make installation easy. Help your ride breathe more clean, cool air with an assist from ICT Billet Hi-Ram lid spacers.

5.0 out of 5 stars ( 1 )

$289.99

On Sale

Holley LS Mid-Rise Carbureted Intake Manifolds

Bolt a carburetor onto your LS engine using Holley LS mid-rise carbureted intake manifolds. These intake manifolds work on all GM LS, Gen III, or Gen IV engines equipped with rectangular or cathedral port cylinder heads. Available in a single or dual plane design, these manifolds use an O-ring cylinder head mounting flange to provide an OEM seal and make installation a snap. You'll also receive mounting bolts, washers, and pipe plugs for the manifold vacuum and MAP sensor ports.

4.41 out of 5 stars ( 46 )

$573.95


$302.95

$523.95

DeatschWerks Fuel Rails

DeatschWerks fuel rails offer the quality, performance and flexibility that fits your fueling needs. These vehicle-specific fuel rails offer higher flow, more plumbing options, and several unique features that go beyond what is currently available in the market. Engineered for use in both return and returnless configurations, these fuel rails are CNC-machined from billet aluminum, then are hard anodized in a black finish and feature integrated CNC brackets to provide easy bolt-on installation. In addition, DW's engineers invested significant design time with their fuel rails by removing excess material to shave weight and create a sleek signature look resulting in a component that looks as good as it performs. Order the DeatschWerks fuel rail model recommended for your application.

5.0 out of 5 stars ( 2 )

$389.00

$419.00

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.

3.19 out of 5 stars ( 31 )

$429.99


$326.99

$429.99

Edelbrock Victor LS Throttle Bodies

Edelbrock Victor LS throttle bodies are constructed from billet aluminum and come complete with TPS and IAC, maximizing performance upgrades on all Pro-Flo XT, EFI Victor Elbow, and Gen III and Gen IV engines with cable-driven throttle bodies. With bolt patterns for both LS generations, these enlarged single-bore throttle bodies feature a progressive throttle linkage and parabolic bore design for increased power and enhanced low-speed drivability. A thicker throttle blade eliminates deflection for boosted applications, while a beefed-up linkage and dual-spring mechanism ensure safety and total throttle control.

5.0 out of 5 stars ( 1 )

$329.95

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