Availability
Holley Terminator X engine management systems let you take control of your domestic V8 engine. These kits 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 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. All systems come fully loaded with base maps for common engine combinations to get you out of the garage and onto the road or track fast. 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 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: 4 x 1D tables, 1 x 1D per gear table, 4 x 2D tables, 1 x 2D per gear table * 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 domestic V8 engines, as well as tuning and gauge display functions (not available with every kit)
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$1,449.95
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$1,899.95
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
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$1,849.95
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$2,249.95
Holley Sniper EFI HyperSpark distributor kits were designed to make upgrading your ignition on a Sniper EFI-equipped engine simple. When installed concurrently with a new Sniper EFI system, the combination creates the easiest way to install EFI conversion on the market—and only four flying lead connections are required! The harness only requires one connection to a switched power source, battery positive, battery negative, and fuel pump power. The pre-terminated connectors and a built in 40A relay provides power to all of the components within the system. With the included Sniper EFI main harness you no longer need to run multiple wires to provide switched power for each individual component, which not only helps prevent wiring confusion, but it will also speed up your install time and clean up your engine bay. Simply route the harness and pre-terminated connectors to your HyperSpark coil, distributor, and ignition box and plug them in. Available for all popular engine combinations, these kits come with a distributor, coil, ignition box, and an integrated Sniper EFI harness. Order the application you need. Key features: * Plug-and-Play Sniper EFI main harness replaces the standard Sniper EFI harness with four loose leads, battery positive, battery ground, switched 12 V, and fuel pump power, for a simple and streamline installation * Designed for existing or new Sniper EFI installations (the HyperSpark Master Kit harness retains the same flying lead wire colors as the Sniper EFI main harness; new installations will not use the Sniper EFI standard harness or coil driver * Complete ignition system in a box, including: HyperSpark ignition box, HyperSpark ignition coil, HyperSpark distributor (for your application), and a plug-and-play main harness * HyperSpark distributors feature a Hall Effect crank trigger sensor providing a noise-free rpm signal to the Sniper ECU * Patented clear installation cap eliminates any confusion while installing the distributor * HyperSpark CD ignition box is seal and powder coated to be installed in the harshest of locations * External LED on HyperSpark CD Ignition box helps verify 12 V, cranking rpm, and low battery voltage * 135mJ of spark energy when used with the HyperSpark ignition coil, ensures complete combustion * Integrated ignition coil bracket simplifies mounting the Ignition coil * Ignition coil connector removes any doubt of loose connections at the Ignition coil * Enables timing control on a Sniper EFI Installation
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$999.95
Do you need to upgrade your ignition system due to a recent Sniper EFI installation, but have no idea which option is best? Introducing Holley Sniper EFI HyperSpark distributors. These billet distributors use a hall-effect crank signal sensor, providing a noise-free RPM signal to the Sniper ECU. HyperSpark distributors include a patented clear installation cap that eliminates any confusion when installing the distributor. They're an easy plug-and play solution to add timing control and complete your Sniper EFI installation. Many options are available; choose the model recommended for your year/make and engine application.
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$449.95
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$499.95
On Sale
Mopar's popular Gen III Hemi engines are ideal for swapping into muscle cars since they are durable, reliable, and make great power. The factory oil pans that come on these engines usually do not fit and hang too low for your swap. Holley Gen III Hemi retrofit oil pans' cast aluminum construction and integrated windage tray combined with the O-ring sealing provide an attractive leak-free solution for your engine swap. With the included pickup assembly and mounting bolts, Holley Gen III Hemi mid-sump engine swap oil pans have everything you need for installation.
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$522.95
$339.95
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$534.95
On Sale
Holley Street Performance mechanical fuel pumps are designed to work with stock or mildly modified engines. Ranging in performance styles of 80 to 225 gph, their body castings can be rotated 360 degrees to ease mounting in difficult places and they have large orifices for high flow rates. These pumps are not compatible with methanol or alcohol fuels and should not be used with fuel injection systems. A fuel pressure regulator is required for 130 gph versions.
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$236.95
Holley Sniper E85 in-tank electric fuel pumps are high-output models that fit the most popular EFI applications. The pumps can be regulated to support carbureted systems, as well, and all are compatible with gasoline or E85. Designed for applications requiring more fuel flow (utilizing the factory OE lines and mounting brackets), the 340 lph fuel pumps can also be used as a universal replacement—or upgrade for aftermarket applications requiring more fuel flow to support additional horsepower, while using power adders. Order the model recommended for your vehicle. Features include: * 340 lph E85-compatible * Designed for in-tank use only * Compact enough to fit in existing hanger assemblies without modification * Complete kit with all drop parts, accessories, and installation instructions * Filter, wiring pigtail, rubber hose, clamps, and rubber grommet included * Inlet filter meets or exceeds original equipment specifications and provides improved filtration/durability * Can be used with carbureted or EFI applications * Perfect upgrade for aftermarket pumps, like Holley retrofit EFI modules, when more fuel is needed with turbos or nitrous
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$162.95
Holley has responded to the expanding late model marketplace by developing the most complete line-up of performance upgrades and engine swap products, including Holley power steering pumps. They are available in two versions: cast iron Saginaw Type II pumps with reservoirs for use on low accessory drives; or Corvette-style lightweight aluminum pumps (also known as Saginaw TC type pumps) for use with Holley driver's side brackets. The aluminum pumps also work with Holley's special reservoir kit.
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$437.95
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$549.95
Holley offers a variety of direct replacement EFI wiring harnesses, including multi-port, sequential, and throttle body injection styles. These units are made with premium components to ensure better reliability and performance for your ride--and they're compatible with many engine swaps. Holley EFI systems wiring harnesses are sold individually or as a kit; choose the model needed for your fuel injection application.
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$799.95
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$849.95
Holley EFI Gen III Hemi single plane intake manifolds provide maximum hood clearance combined with plenum and runner geometry that provides a broad rpm powerband for high performance street/strip engine applications to a maximum engine speed of 7,500 rpm. The isolated design of the air/fuel passages helps to increase charge air density and performance. Holley EFI Gen III Hemi single plane intake manifolds are great for turbocharger, centrifugal blower, or NOS power adders. Features: * Minimum carburetor flange height for maximum clearance to hood * 4150-type throttle/carb flange * Cast aluminum construction * Billet fuel rails * Billet aluminum oil fill cap * Mounting brackets for use with either Bosch EV1 or Gen III Hemi OEM fuel injectors * O-ring seals around ports * Natural or black finish available
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$630.95
Holley EFI Hi-Flow billet fuel rails offer flow capacity for high horsepower applications and billet aluminum construction that is machined and black anodized for great style under the hood. Laser-etched with the "Holley EFI" logo, the fuel rails feature a 5/8 in. diameter fuel passage, -8 ORB ports on each end, and an 1/8 in. NPT port for a fuel gauge installation if you choose to do so. Holley EFI Hi-Flow billet fuel rails are designed with the factory injector clip reliefs so that your factory injectors and retaining clips can be reused. This is important as the clips locate the injector radially for proper injector spray pattern onto valves. The kits include fuel rails, mounting brackets, and required mounting hardware.
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$249.95
On Sale
Precise timing control—Holley EFI dual-sync distributors are built with two Hall effect sensors for crankshaft and camshaft signals. The distributors can be used as just a crankshaft speed input or provide a camshaft sync signal for sequential fueling operation. They're also useful for crank and cam signals when running coil-on-plug applications. Dozens of models are available; order the one recommended for your vehicle/engine application. Some features of Holley EFI dual-sync distributors include: * CNC-machined billet aluminum housings with integrated LEDs for easy setup * Hardened steel distributor gear * Precision-machined shutter wheels that ensure accurate timing—even at very high RPM * Designed to be plug-and-play with Holley systems, but may be used with other EFI systems that support Hall effect crankshaft and camshaft sensors * Housings are available in a variety of finishes
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$274.95
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$599.95
These Holley intake manifold adapter kits let you mount older intake manifolds to the newer style center-bolt cylinder heads. They include four angled spacers with matching Allen head bolts to adapt Holley intake manifolds to the new-style heads.
Not Yet Reviewed
$399.95
On Sale
Holley alternator brackets are the perfect solution to mounting your alternator when a new brackets is needed. Made from high-quality materials and available in multiple finishes Holley alternator brackets will look great under the hood of any show car. Order the model recommended for your engine application.
( 2 )
$381.95
Holley single plane carbureted intake manifolds are designed to provide a broad rpm powerband for high performance street/strip engine applications to a maximum engine speed of 7,500 rpm. The carburetor mounting pads will accept all stock or aftermarket square-bore carburetors with manual or electric chokes. These Holley intake manifolds are also engineered to accept most stock hardware and accessory brackets—but offer performance features like: an updated plenum divider area; a 1 in. shorter height than their Strip Dominator manifold; and a choice of two distributor clamp locations. The isolated design of the air/fuel passages helps to increase charge air density and performance. Features include: * Single-plane with isolated plenum * Square-bore carburetor mounting flange * Isolated water crossover * Power band: 2,500 to 7,500 rpm * Height: Front 4.18 in., rear 5.28 in. * Port size: 1.92 in. height, 1.20 in. width
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$549.95
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$573.95
The late-model factory power steering pump on the Mopar Gen III Hemi engines has too much pressure for the steering box on most older muscle cars and trucks, so Holley developed a low pressure power steering pump for Gen III Hemi swaps. These special Saginaw Type II low pressure power steering pumps produce the proper pressure, and the 6-rib billet aluminum pulley is sized to operate the pump at the proper speed when used with the existing drive system on Gen III Hemi engines. The special hardline adapter moves the power steering hose connection to a more accessible location for an easy installation and maintenance. Features and benefits: * Low-pressure power steering pump it—use with factory low-pressure steering boxes on muscle cars and trucks with Gen III Hemi engine * Works with factory "car style" accessory drive system and fits 2003-2008 5.7L and 2005-2010 6.1L Gen III Hemi engines * Also fits some 2009-2013 5.7L and 2011-2013 6.4L with 4.34-inch belt spacing * Prevents damage to steering box on older vehicles * Billet aluminum mount with black anodized finish bolts to existing tapped holes on the left side cylinder head of Gen III Hemi engines * 6-rib billet aluminum pulley with black anodized finish sized for proper pump speed * Power steering pump assembly includes a plastic reservoir * Special hardline moves -6 AN hose connection to a more accessible location
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$534.95
Holley Hemi V8 ignition coil adapter harnesses let you take charge of your engine by controlling both fuel and spark. They are built to fit and function with the factory harness. The harnesses feature TXL-grade copper wiring with minimal weight, plus high-temperature sleeves in a small diameter. Factory-style terminations provide a strong, secure connection.
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$187.95
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$199.95
These Holley replacement fuel injector wiring harnesses are replacements for the 8-cylinder injector harnesses. They connect the main harness to the injectors, routing the wires over the rail and making replacement a snap!
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$187.95
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$199.95
Holley drive-by-wire accelerator pedals perfect complements to any vehicle using DBW. They offer plug-and-play compatibility with Holley EFI and simply bolt into the stock locations when used with Holley's DBW pedal brackets (sold separately). Features: * Simplifies engine swaps with DBW accelerator systems * Works great with Holley EFI installation * Provides modern look and performance for classic vehicles * Fits in OE location when used with Holley DBW pedal brackets
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$108.95
Holley Performance offers late model dual pump module relay kits for a variety of applications—including many Ford, Dodge, and Chrysler vehicles from 2005 and up. Each kit includes essential parts necessary to wire twin pump modules to a vehicle. The installation starts with two high-quality Hella 40 amp relays, as well as relay sockets with 10 ft. wire lengths, 12 gauge primary wires, 16 gauge secondary signal wires, and heat shrink sealing connectors to complete your install. Also included are two fuse holders and 30 amp fuses, one for each pump.
Not Yet Reviewed
$186.95
On Sale
Holley Sniper fabricated aluminum valve covers deliver high-end looks without the high-end price! They're constructed from 6061 T-5 sheet aluminum and precision TIG-welded for a proper fit. Plus, they feature thick one-piece CNC billet flanges for superior sealing. Sniper valve covers are available in your choice of natural or black powdercoat finishes, as well as with or without breather openings—and heights to clear most popular rocker arm combinations. Holley includes mounting hardware for quick and simple installation. Order a pair for fitment on your particular engine application.
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$131.95
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$231.95
Holley thermostat housing assemblies are replacement components for mid-mount accessory drive systems. These thermostat and housing kits are genuine Holley parts providing the correct fit to restore optimum operation and engine cooling.
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$81.69
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$88.84
On Sale
Holley Sniper HyperSpark ready to run small cap distributors adds plug and play ignition timing control to any Holley EFI system. This line of distributors comes with a built-in ignition coil driver, removing the need of mounting an ignition box or external coil driver. The design includes a single Hall Effect sensor providing engine rpm to the ECU. The precision shutter wheel design ensures accurate timing, even at very high engine speeds. They can also be used with other EFI systems that support a Hall Effect crank signal input. Order the model designed for your application needs. Features: * Easiest plug-and-play way to add timing control to any Sniper EFI installation * Designed to work with HyperSpark ignition coil (PN: 556-152); also compatible with most canister ignition coils using the supplied ring terminals * Built-in ignition coil driver, safely provides enough spark energy for applications up to 450 hp * Patented clear installation cap eliminates any confusion while installing the distributor * Cast aluminum distributor housing looks right at home in nearly every engine bay * Comes with cast gear installed—contact camshaft manufacturer for recommended gear material * Comes with steel gear for SBF applications with an aftermarket camshaft * Precision shutter wheel provides the ECU a clean rpm signal via a single Hall Effect sensor, ensuring accurate timing even at high engine rpm * Shutter wheel design allows for a "timed sequential" fueling strategy with Terminator X, HP, and Dominator ECU's * Includes wire retainer for a clean installation
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$549.95
$302.95
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$549.95
Holley EFI Gen III Hemi Hi-Ram intake manifolds are for high performance applications where induction system height is not limited. Able to add even more power to your engine, these manifolds have large intake ports and a modular base design with runner lengths and tapered cross-sections that will perform well for a wide range of engine configurations. Their aggressive, bold, race-bred styling will make bad intentions clear for drag race, muscle car, marine, off-road, sandrails, pulling trucks, track, and street-rod applications. Holley EFI Gen III Hemi Hi-Ram intake manifolds feature cast aluminum construction offered with a natural satin or black finish. They are available with either a 95 or 105mm LS-style throttle body or as the manifold base alone for custom induction systems. Features and benefits: * Modular design base accepts a wide range of EFI tops and can be used as the foundation for custom induction systems * EFI fuel rails are machined for -8 AN O-ring fittings with passages large enough to accommodate high fuel flow and dampen pressure pulsations in the fuel system * Intended for use on naturally aspirated, forced induction, or nitrous engines in the 5.7L to 7.2+L range, and maximum power at 7,500 to 8,500 rpm * Works with Gen III Hemi injectors and Bosch EV-1 style injectors * O-ring seal to head offer superior OE-style sealing and are easy to replace * Billet oil fill cap offers an attractive low-profile design * Positive Crankcase Ventilation (PCV) ports with adapter fittings * Port for OE-style Manifold Absolute Pressure (MAP) sensor (1 or 2 Bar) * Cast-in pads for adding nitrous nozzles
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$999.95
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$1,499.95
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