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Holley Aluminum LS Valve Covers
Holley aluminum LS valve covers will give your Chevrolet LS Series engines a totally new look. Manufactured from cast aluminum, they come in four different finishes, and feature a billet aluminum oil fill cap. Some valve covers in this series eliminate the need for the factory ignition coil bracket. Instead, the coils bolt directly to the valve covers for a nice angled look! Holley aluminum LS valve covers reuse the factory gaskets and bolts, will work with .750 in. lift camshafts using stock-style rocker arms, and fit all ignition coils with 72mm spacing.
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$511.95
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$716.95
Holley EFI Systems Wiring Harnesses
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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$649.95
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$716.95
Holley Premium Alternators
With performance engines pushing redlines up higher and higher, alternators are being forced beyond their design. Holley's premium alternators can tolerate 30 percent higher rpms than conventional models. The attention to cosmetic detail on these units is above and beyond what you would expect, too. The entire outside housing has been sculpted for a smooth silhouette that hides the ugly details we typically think of as alternators. If you drag race, autocross, or just hot rod your ride, be assured that Holley premium alternators won't fly apart on you. Features: * Available in natural, black, and polished finishes * Works with all Holley accessory brackets, as well as 4th generation F-body, most 1998 thru 2004 GM trucks, and many other applications * 150 amp output * Smaller and lighter than Holley high-amp alternators * Housings are smoothed to make polishing clean (no buffer cut marks trying to get in tight corners) * Rear cover is aluminum instead of typical black plastic * Ideal when size and clearance matter * Black and polished pulley covers are available on models that don't already include them * Designed for use with Holley alternator weatherproof pigtails (not included)
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$526.95
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$665.95
Holley EFI LS Single Plane Split-Design Race Intake Manifolds
Developed with performance in mind, Holley EFI LS single plane split-design race intake manifolds feature a race bred, 2-piece split design that was previously found only on the most expensive race intakes. These manifolds will fit GM LS Gen III engines with cathedral port heads for high performance/racing engine applications with 5.3 to 6.2 liter displacement and maximum engine speeds of 6,000 to 7,000 rpm, depending on the engine combination. The single-plane design provides optimal performance across the rpm spectrum, while the split feature, which allows disassembly of the intake for direct access to internal plenum and port surfaces, makes custom porting and matching a snap. Shoulder bolt locators and an O-ring seal makes reassembly simple and precise.
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$716.95
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$749.95
Holley LS Modular Lo-Ram EFI Intake Manifolds
Holley LS Modular Lo-Ram EFI intake manifolds are designed for GM LS Gen III and IV engines equipped with GM LS1/LS2/LS6 (cathedral port) cylinder heads. These intake manifolds will work with OE or aftermarket cylinder heads. The Lo-Ram intake manifolds are designed for forced induction (supercharged or turbocharged) engine applications and a 105 mm throttle or similar models. The base intake manifold is designed with a lower overall height to fit under a stock or mildly modified hood in the front-feed configuration. The modular design allows the use of front-feed plenum entry, while intake design facilitates custom inlet duct and throttle body placement. Additional features and specs: * Cast aluminum construction with satin silver finish * Modular design allows the use of front-feed plenum entry * Clears 4th Gen Camaro and C5 Corvette cowls and hoods without modification * With forced-induction and the short runner length the engine rpm at which peak power occurs is more likely to be coupled to the supercharger or turbocharger being used * High-volume fuel rails and mounting hardware included with 3/4 in.-16 O-ring ports (8 AN) * Fuel rail kits include two sets of brackets; a set for long (usually standard length) fuel injectors and a set for short (such as Pico, or LS7) fuel injectors
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$665.95
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$699.95
Holley Power Steering Pumps
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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$562.95
Holley LS Pontiac-Style Valve Covers
Holley modular LS Pontiac-style valve covers feature an OE height, internally-baffled base with integrated coil mounts for popular Gen I and Gen V-style LS coil bodies. The overcovers hide the unsightly LS coils and messy wiring harness—allowing the full performance benefits of coil-on-cover ignition setups without the robotic styling. Each modular coil cover features a simulated oil fill cap which helps maintain the original Pontiac styling. The coil cover also features cast-in provisions for the spark plug boots and coil wiring harness, so no extensions or custom wiring is required. Holley's 2-piece LS Pontiac-style valve covers offer a great way to update the look of your LS engine without the use of complicated adapter systems or the hassle of remote coil relocation! More product features and items include: * Available in various finishes * Base fits LS1, LS2, LS3, LS6, and LS7 engines with clearance for 0.750 in. lift cam with stock style rocker arms * Base features internally baffled ventilation system * Each 2-piece LS valve cover set includes a low-profile billet oil fill cap, 2 billet simulated fill cap assemblies, hardware, and spacers for mounting both versions of LS coil bodies * Dress-up hardware and rubber grommets for the coil covers
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$599.95
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$614.95
Holley 2-Piece Ford Style Valve Covers
Holley's 2-piece LS valve covers are a great way to update the look of your LS engine without the use of complicated adapter systems or the hassle of remote coil relocation. These modular LS valve covers feature an OE height, internally baffled LS valve cover base with integrated coil mounts for popular Gen I and Gen V style LS coil bodies, and a Ford style overcover that hides the unsightly LS coils and messy wiring harness. This allows the full performance benefits of coil-on-cover ignition setups without the robotic styling. These coil covers also feature cast-in provisions for the spark plug boots and coil wiring harness, so no extensions or custom wiring is required. Each 2-piece LS valve cover set includes a low-profile billet oil fill cap, hardware and spacers for mounting both versions of LS coil bodies, plus dress-up hardware and rubber grommets for the coil covers. The modular LS valve covers are available in three custom finishes: natural cast, polished, and satin black. Features: * Cast aluminum 2-piece LS valve covers designed to mount and hide both Gen I and Gen V style LS coil bodies * Retain the performance of factory coil-on-cover ignition without the unsightly styling * Coil cover features vintage Ford valve cover styling and cast-in wiring provisions * Base fits LS1, LS2, LS3, LS6 and LS7 engines with clearance for .750 in. lift cam with stock-style rocker arms * Base features internally baffled ventilation system * No coil relocation, wire harness extensions, or custom spark plug wires required * Includes low-profile billet oil fill cap * Includes all necessary coil mounting provisions and dress-up hardware
Not Yet Reviewed
$511.95
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$587.95
Holley Single Plane Carbureted Intake Manifolds
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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$562.95
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$587.95
Holley EFI Crank Trigger Kits
Holley's EFI crank trigger kits provide accurate crank speed and position signals to Holley EFI systems in the most demanding, high-horsepower, racing applications. The crank position is measured every 10 degrees instead of every 45 degrees, like standard 4-magnet crank trigger systems. Holley's EFI crank trigger kits feature 1/4 in. thick, billet steel, 36-1 or 60-2 tooth-crank trigger wheels with black zinc oxide finish for superior corrosion resistance and striking good looks Other notable features include: * Crank wheels center off of balancer hubs, eliminating the need for centering rings * All billet, 6061-T6 aluminum sensor mounting brackets with "bright-dipped" black anodized finish and laser-etched Holley EFI logo * Custom 3-wire, ferrous-target, Hall-effect sensors with M12 x 1.0mm threads for finer gap adjustment * Grade 8 and mil-spec mounting hardware
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$665.95
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.
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$511.95
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$562.95
Holley Harmonic Balancers
Holley harmonic balancers are offered for a variety of internally or externally balanced applications; in versions for engines requiring weighted or non-weighted balancers. All are accurately balanced and carefully machined for correct fit. Holley harmonic balancers feature clear, white, easy-to-read timing marks against a painted black background.
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$679.95
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$716.95
Holley LS Split Design Carbureted Intake Manifolds
Holley LS split design carbureted intake manifolds are single-plane racing units designed with performance in mind. They feature a race-bred, 2-piece split feature that was previously only found on the most expensive race intakes. The manifolds will fit GM LS Gen III engines with cathedral port heads—and are intended for 4150-style square bore flanged carburetors or throttle body EFI. The LS Race single-plane intake manifold was designed for high performance/racing engine applications, 5.3 to 6.2+ liter displacement—and maximum engine speeds of 6,000 to 7,000 rpm, depending on the engine combination. This single-plane design provides optimal performance across the rpm spectrum, while providing maximum performance up to 7,000 rpm. Features include: * Maximum performance race design with hood clearance consideration * Lighter than other split race intakes * Split feature allows disassembly of the intake for direct access to internal plenum and port surfaces, making custom porting and matching a snap * Shoulder bolt locators and O-ring seal make reassembly simple and precise * 33 to 50 percent the price of other split race intakes * Vacuum port options: Two 1/8 in., one 1/4 in., and one 3/8 in. NPT ports at the carb flange
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$665.95
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$749.95
Holley Gen III Hemi Low Pressure Power Steering Pumps
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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$549.95
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.
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$562.95
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$587.95
Holley LS Extended-Length Main Engine Harnesses
Holley LS extended-length main engine harnesses are 22 in. longer than previous harnesses. Designed to fit most 24x and 58x LS engines from 1997-2012, they are a perfect fit for installers wanting to mount any Holley EFI ECU inside of the passenger compartment where it is away from the elements, and easy to access, such as on a roll bar or under the passenger seat. Notes: * Plug-and-play with Dominator, HP, Terminator X, and Terminator X Max ECUs * LS1/6 harness interfaces with 24x crank and 1x cam sensors * LS2/3/7 harness interfaces with 58x crank and 4x cam sensors
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$688.95
On Sale
Holley Cooling Manifolds
Holley cooling manifolds are designed for use with their mid-mount accessary drive systems. These aluminum manifolds are offered with a black, polished, raw, or satin finish. Keeping your vehicle cool is the key to maximum performance. Holley cooling manifolds will help dissipate some of that extra heat.
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$511.95
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$716.95
On Sale
Holley EFI Coyote Ultra Lo-Ram Intake Manifolds
Holley EFI Coyote Ultra Lo-Ram intake manifolds are designed to fit stock bolt pattern OE heads found on the 2011-23 Ford 5.0 Coyotes and related engine families, such as Voodoo and Predators. These kits include fuel rails for use with OEM-type fuel injectors and clips, mounting hardware, and O-ring gaskets. Offered in black and natural as-cast finish, the manifolds have a 9.20 in. runner length and are designed to improve the mid to high RPM powerband. The Ultra Lo-Ram provides an additional 19.4mm front and 42.6mm rear clearance compared to the Ford Performance Cobra Jet manifold—plus clears 2015-23 Mustang factory hoods. They're offered in both round and oval throttle body configurations, with replacement front inlets for easy interchangeability. The oval inlet can accommodate up to a 150 x 66mm single throttle body and 93mm on the round variant. Round inlets include standard mounting provisions for GT350, GT500, and LS 4-bolt throttle bodies. 2011-23 GT throttle bodies can be used with the optional 717-18 adapter. (NOTE: Coyote Ultra Lo-Ram intake manifolds are available with the base only, no top included, if desired. See "Intake Section Included" tabs.) Product features: * As-cast aluminum construction: more durable for boosted applications, can be welded for modifications * Modular design: accessible runner entries for porting, allows accessories like intercoolers and nitrous plates * 300-911 and 300-912 Ultra Lo-Ram will fit under stock hood with stock engine mounts in 2015-23 Mustang * Refined port design with streamlined injector boss for reduced turbulence without loss of flow area * Allows a variety of throttle valves, including large monoblade, 2015-20 GT350, 2007-14 GT500, 2019-23 GT500, GM LS 4-bolt, 2011-23 Ford Mustang GT (with optional adapter PN 717-18) * Fuel rails with -8 AN ports and dual 1/8 NPT accessory ports for gauges or Gen 3 direct injection fuel line hookup
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$924.95
$522.71
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$635.95
Holley Gen III Hemi Timing Covers
Holley Gen III Hemi timing covers are offered in two finishes for your mid-mount accessory drive system. Available for Hemi engines with or without VVT, these covers are the correct replacements for those originally supplied in your Holley complete accessory system. They will provide the perfect fit and expected performance to service your system. Choose the Gen III Hemi timing cover required for your setup.
Not Yet Reviewed
$530.95
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$587.95
On Sale
Holley Sniper EFI Dual-Plenum Intake Linkage Kits
Holley Sniper EFI dual-plenum intake linkage kits are effective solutions to handle dual cable driven throttle bodies. They provide all brackets, plates, throttle cables, hardware, and detailed instructions to offer a complete and seamless installation. Linkage kits are available in a silver or black finish and 92mm and 102mm throttle bore diameters to offer solutions for all Holley Sniper dual plenum intake manifolds.
Not Yet Reviewed
$511.95
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.)
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$511.95
Holley EFI Gen III Hemi Single Plane Intake Manifolds
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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$649.95
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$665.95
Holley Drop-In Fuel Module Assemblies
Holley drop-in fuel module assemblies cover a wide range of vehicles and performance expectations—including dual pump designs. These replacement assemblies meet the highest-quality standards offered for increased performance and fuel efficiency. Holley drop-in fuel modules are capable of supporting 550-plus horsepower right out of the box! Dozens of models are available, with flow rate options between 50 and 277 gph. Order the fuel module recommended for your vehicle. Features may include: * Plug-and-play wiring harnesses * Integrated fuel storage and filtration technology * Built-in, pre-calibrated fuel level sensors * HydraMat filter (keeps fuel available at the pick-up during radical maneuvers and provides contamination protection) * Most models include sending unit
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$549.95
On Sale
Holley Sniper EFI Fabricated Intakes
Holley Sniper EFI fabricated intake manifolds are budget-friendly and performance laden! These durable Holley hi-ram manifolds feature 3mm (1/8 in.) thick T-6061 sheet aluminum construction with 100 percent TIG welds. The EFI versions have 92mm or 102mm throttle body openings, as well as runners with tapered tops to increase velocity and evenly distribute airflow. They also include 3/8 in. fuel rail kits and, of course, are branded with the Holley Sniper EFI logo. Budget and performance go hand-in-hand when it comes from Holley in the form of their Sniper EFI fabricated intakes. Order the model and options recommended for your make/engine application.
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$849.95
$566.61
