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Use Holley intake manifold gaskets for the reliable sealing of your manifold. They are made using popular materials and construction styles, such as composition and Kormetal, for many popular engines.
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$57.29
Holley intake manifold studs are made of high-quality steel construction for long-lasting durability and performance. They are designed to be used with Holly Hi-Ram style intake systems to give them peak performance. If you have a new Hi-Ram system you're throwing in your ride, make sure you don't forget to grab a set of these Holley intake manifold studs.
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$75.05
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$88.39
On Sale
Holley upper to lower intake manifold gaskets provide reliable sealing of your manifold. They're made using premium materials and configured to fit a variety of port styles. Order the replacement gasket recommended for your intake manifold application.
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$56.19
$50.55
The Holley EFI vacuum manifold kit is designed for as a simple and clean solution for plumbing either vacuum or boost referenced sources. This manifold block features 12 1/8th NPT ports that can be plumbed with most common EFI transducers, such as the Holley 554-102 0-100 psi transducer. It also features two -6 O-ring boss AN ports, ensuring your manifold block has an excellent vacuum or boost reference source. Improve your engine bay organization by mounting all of your common pressure sources in one easy-to-access location! Product features: * Compatible with all transducers that utilize 1/8 NPT male threads and 7/8 in. or smaller body/hex diameter * 12 independent 1/8 NPT ports * Two -6 ORB ports * Improve engine bay organization by mounting transducers and/or vacuum lines all in one easy-to-reach location * Ideal for engines that require multiple vacuum/boost reference sources * 4 mounting holes designed for the use of 5/16 in. socket head cap hardware for secure and robust mounting * Crafted from 6061 aluminum * Anodized black for durability and laser-etched with the Holley EFI logo
Not Yet Reviewed
$73.19
On Sale
Holley offers intake manifold hardware kits for a variety of Chevrolet engine applications from 1997 and up. The installation hardware is available in a silver or black finish.
Not Yet Reviewed
$51.39
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$93.89
On Sale
Holley throttle body angle adapters resolve problems. The considerable angle of the LT intakes can cause issues routing inlet plumbing and clearance to aftermarket accessory brackets. These adapters level the throttle body for swap applications without changing the flow the GM design intended. Other four-bolt intakes with routing issues can also benefit from this adapter. Features and benefits of Holley throttle body angle adapters: * Billet aluminum construction * Maintains proper throttle body blade orientation * Eliminates drivability issues associated with inverting the throttle body * Allows clearance to aftermarket accessory brackets or other clearance and routing issues * No harness rerouting or extending required * Works with both truck and car LT intake bolt patterns * Works with all 4-bolt LS intake bolt patterns * Works with up to 95mm intakes and throttle body openings * Works with common LS and LT 104 x 70mm bolt pattern throttle bodies * Adapts common LS 104 x 70mm bolt pattern throttle bodies to LT 5.3L truck intakes * Works with Holley 92/95mm Hi-Ram and Mid-Ram intakes * Allows use of cable-operated and other throttle bodies on Gen V 5.3L intakes
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$90.39
$81.35
On Sale
Holley EFI throttle body adapters are offered individually allowing you to select your components as you build your intake system. They work with a wide range of intake configurations and come in different sizes depending on your throttle body. Simplify the process of getting your intake system set up with Holley EFI throttle body adapters.
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$92.19
$74.69
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$82.95
On Sale
Get connected with Holley EFI Coyote throttle body adapters! These adapter plates have a cast aluminum construction that's more durable for boosted applications, can be welded for modifications, and they are available in your choice of natural or black finishes. Choose the model for your application. Whether you're engine swapping your classic car or need to manage 4000 horsepower in your twin-turbocharged drag radial race car, Holley EFI has the solutions you need to get your project up and running better than ever!
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$179.95
$98.95
On Sale
Holley Sniper EFI cable bracket kits are designed to align the throttle cable and provide the most direct route, which will eliminate any binding. The brackets are constructed from high-quality billet aluminum and available in different finishes to match the intake manifold. All necessary mounting hardware is included. Order the kit recommended for your year/make and engine size.
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$74.99
Holley LS Series fuel rail brackets and fasteners are the correct replacements for GM LS Series Lo-Ram manifolds. The brackets feature robust aluminum construction and a durable black finish.
Not Yet Reviewed
$54.89
Holley throttle body base plate gaskets are designed to fit the exact bore diameter of the Holley TBI Pro-Jection units. They are made of a composite material to withstand engine compartment temperatures while providing a leak-free seal.
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$76.45
On Sale
Holley EFI Terminator X fuel injectors feature a precision lapped disc valve, high-quality brass windings, and high-temperature O-rings. These injectors provide excellent linearity with no discernible "bounce" at low pulse widths as commonly found in other injectors. With a wide variety of fuel flow offerings from 42 lb./hr. to 220 lb./hr. you are sure to find an injector that matches your non-emissions-controlled application. Holley EFI Terminator X fuel injectors can also be used with any ECU that utilize high-impedance fuel injector drivers. Features: * PICO/EV6-style performance injectors are sold individually or in a set of 8 * High impedance for use with saturated drivers * Rated injector flow 220 lb./hr. at 43 psi of base fuel pressure * USCAR injector connector * 40mm O-ring to O-ring length * Compatible with many OEM LS intake manifolds * Easy to install in any Holley EFI Hi-Ram intake, using Holley fuel rail adapter kit
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$64.15
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$82.95
Want to make the switch from the original Sniper EFI to Sniper 2 and don't want to rewire your system? This harness is designed to do exactly that! The Holley Sniper adapter harness is a plug-and-play solution to connect your existing Sniper 1 wiring harness to a Sniper 2 throttle body! It can be used with any Sniper 2 system that is not equipped with a power distribution module (PDM). Simply remove your Sniper EFI throttle body from the intake manifold, unplug all of the connectors, and plug the Sniper EFI 2 adapter harness into your existing main harness. Cycle your ignition key, run a fresh wizard on the display of your choosing, and enjoy the benefits of Sniper EFI 2. Make the switch to Sniper 2 in minutes! Sniper EFI 2 is a high performance electronic fuel injection system designed for a wide range of engines and horsepower goals. It provides improved engine performance, better fuel efficiency, and easier starting, making it the perfect upgrade for any enthusiast looking to take their ride to the next level. With its easy installation and advanced technology, the Sniper EFI 2 is the ultimate fuel injection system for any conventional V8 engine. Features: * Update your Sniper 1 to Sniper 2 in less than an hour: One-step, plug-and-play upgrade from your existing Sniper EFI install to a Sniper 2 throttle body * Eliminates the need to rewire your existing Sniper EFI installation * The wiring harness included with the Sniper 2 kit will not be used. This adapter is intended to be used with the original Sniper EFI wiring harness and new Sniper 2 EFI throttle body Sniper 2 EFI benefits: * (NEW) Next Generation ECU features improved RF noise and interference resistance (stands up to old car wiring, noisy alternators, faulty plug wires)  * (NEW) "Hidden Harness" wiring harnesses exit from the rear of throttle body for a clean appearance  * (NEW) Inputs and outputs consist of: 2x ground inputs, 2x ground outputs, 1x TPS output (0-5 V) and 1x tach output  * (NEW) Next Generation mil-spec style M8 positive lock connector for CAN1 and CAN2 provides the latest in CAN bus technology for a simple yet robust connection 
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$56.09
On Sale
Holley Sniper EFI dual-quad linkage kits will allow you to get your 2 x 4 Sniper EFI throttle linkage adjusted properly on virtually any 2 x 4 intake manifold, or supercharger! Made from high-quality materials, these kits include two heim joint rod ends, one left hand thread and one right hand thread, three universal rods, and the necessary nuts, washers, and bolts. Features and specs include: * Universal length adjustable linkage rods allow you to properly tune your 2 x 4 Sniper throttle for virtually all intake manifold configurations * Rod lengths: 8, 7.25, and 5 in. * Rod thread pitch: 10-32, right and left hand thread
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$78.25
On Sale
Holley Sniper EFI fuel injectors provide excellent linearity with no discernible "bounce" at low pulse widths, as commonly found in other injectors. They feature a precision-lapped disc valve, high-quality brass windings, and high-temperature O-rings. Order a set of eight Holley Sniper EFI performance fuel injectors for use with your Holley EFI intake manifold. Features: * PICO/EV6-style performance injectors * High impedance (12.2 ohms) for use with saturated drivers * Rated injector flow: 36 lbs./hr. at 43 psi * Supports up to 575 hp (maximum) * Tri-cone spray pattern * Not intended as service injectors for Sniper EFI TBI product line
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$86.95
$78.25
Holley secondary adjusting lever kits allow easy adjustment of the secondary throttle blade idle setting of Holley 4150 series mechanical secondary carburetors without having to remove the carburetor from the intake manifold. They are made of steel and feature a durable gold iridited finish.
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$87.95
Keeping your wiring safe is critical to ensure your engine and or electrical system continues to function as desired. Holley EFI flame retardant split-wire looms are engineered specifically to protect your investment from these high temperature conditions, be it from header tubes, turbo manifolds, or other potential sources of heat. The Nomex split looms feature an operating temperature range from -76 degrees F to +392 degrees F, and are self-wrapping, which makes them quick and easy to install. The woven Nomex loom cuts easily with a pair of quality scissors, no special tools required.
Not Yet Reviewed
$74.99
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$91.35
Holley fuel injection connector kits are your EFI multi-port connectors. Complete connector and pin kits are available for Holley MPFI and Stealth Ram Power Pack kits. Includes connector and pins for: * Manifold Absolute Pressure (MAP) sensor * Idle Air Control (IAC) sensor * Throttle Position Sensor (TPS) * Coolant Temperature Sensor (CTS) * Air Intake Temperature (AIT) sensor
Not Yet Reviewed
$56.25
On Sale
Holley Sniper throttle body spacers provide additional clearance. Topping a Sniper EFI fabricated intake manifold with your stock throttle body may mean that a little more room is needed for proper operation. These spacers will do the trick. They can also be used with stock manifolds to provide additional horsepower and throttle response. Holley Sniper throttle body spacers are machined from billet aluminum (with different finishes) and include O-rings with hardware. Order the model recommended for your vehicle application.
Not Yet Reviewed
$105.95
$58.95
On Sale
Holley throttle cable brackets are a nice finishing touch for street rods, street machines, or street/strip cars and trucks. The brackets are available in a variety of mounting styles, and for use with nearly a dozen carburetor models. Brackets for fuel injection style applications are also offered. Choose from among materials and finishes like anodized aluminum and chrome or plated steel. These throttle cable accessories can be ordered for universal or carb-specific replacement.
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$59.25
$53.35
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