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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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Holley Track Series valve covers are GM licensed and provide an excellent way to add high-end appeal to your favorite Chevy engine. These lightweight, yet tough valve covers are constructed of 6061 T-5 sheet aluminum, precision TIG-welded for a proper fit. They feature laser-etched Chevrolet and Bowtie emblems. The covers are available in silver anodized or black coated finishes, along with various heights to clear most popular rocker arm combinations. All models include mounting hardware for quick and simple installation.
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Holley replacement power valves are an important component in the power enrichment circuit of Holley's performance carburetors. They operate by using engine vacuum to control their opening and closing rate. When they open, additional fuel is supplied to the main system during heavy load or under full power situations to eliminate hesitation and bogging--ensuring the smooth delivery of power without any drivability concerns. They're available in many different vacuum ranges to time the system's operation to your specific requirements, and they come in your choice of single-stage, two-stage, and high-flow designs. A gasket is included.
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Holley Muscle Series valve covers are a blast from the past inspired by 1970s-era GM factory L82/LT1/Z28-equipped engines. They fill your desire with the iconic finned design and retro styling cues. You can choose from four finishes to best match your small block. Order the pair recommended for your year/make and engine application. Product features include: * Cast aluminum construction and fin design create strength and rigidity to offer years of leak-free performance * Standard height * Twist-in oil fill knockout (cap included) on one cover * Recessed area to place the included adhesive-backed Holley emblem or any round emblem of your choice on the other cover * Pre-installed internal oil baffles on both covers * PCV grommets
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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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Holley Muscle Series centerbolt valve covers present a no-frills, modern style with prominent raised GM "Chevrolet and Bowtie" logos. Intended as an alternative to the existing GM ZZ6 accessories, a Holley GM Muscle Series cover is the perfect addition to your engine bay if you're searching for a subtle custom variation from the OEM options. They feature a generous internal height for exceptional valve train clearance, and include pre-installed internal baffling, polished mounting hardware, and oil fill/PCV grommets. Holley Muscle Series centerbolt valve covers feature: * Clean, modern styling with high-definition "Chevrolet and Bowtie" logo * Specifically designed for GM ZZ6 engines, but will fit all small block Chevy applications with center bolt-style cylinder heads * Diecast aluminum construction ensures high detail and reduces the opportunity for warping of the valve cover flange and oil leaks * Emissions-compliant valve covers include pre-installed internal oil baffles, as well as an oil fill plug and PCV grommet * Multiple finishes are available
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Holley M/T valve covers are flashbacks to 1972. Nothing was cooler than cruising in your hot rod with a Holley double pumper and M/T finned aluminum valve covers. Each Holley M/T valve cover is precision-manufactured with knockout plugs for stock PCV and oil fill installations. These covers feature polished top cover surfaces that may be used for engraving your name horizontally next to the deep heat dissipating fins. Available in your choice of black crinkle or a polished finish, each Holley M/T valve cover comes in retro packaging styled after the original. Order the pair designed for your engine application.
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Holley carburetor accelerator pump check valves are made to fit most Holleys using a 30cc or 50cc accelerator pump. They feature the "umbrella" design most commonly used in performance-style carburetors.
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$18.99
$17.09
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Put your Holley pride on display with a set of attractive Vintage Series valve covers. Their die-cast aluminum construction ensures high detail, while reducing the opportunity for oil leaks and warping of the flange. Choose from among a half-dozen finishes to give your engine a clean, professional look. The vehicle-specific covers are available for every model year dating as far back as 1958.
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Holley roll over valves are optional fittings designed for their in-tank retrofit fuel modules. Holley has made it easy to convert to an EFI fuel system, and to maintain safety by adding these valves to vent your fuel tank and prevent leaking in case of an accident or roll over. They are crafted from aluminum and black anodized for add durability.
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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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$586.95
$527.95
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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
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$515.95
On Sale
Holley LS valve cover bolt kits are hardware assemblies developed specifically for Holley tall LS valve covers. Available as a single service component or a full set of eight, each bolt assembly features a polished valve cover bolt (M6 x 1.0 threads), aluminum spacer, and OE-style grommet. If you're dealing with lost or damaged fasteners for your tall LS valve covers, don't fret—order Holley LS valve cover bolt kits.
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Racers sometimes prefer to race their cars without using a power valve. In these cases, the only way to properly block off the power valve circuit is with one of these Holley power valve plugs and gaskets. They'll fit any Holley carburetor with 1/2 in. x 28 threads, and block the circuit for all-out race performance!
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$9.12
On Sale
Holley LS valve cover adapter plates offer an innovative way to add the vintage styling cues of a 1958-86 small block Chevy perimeter bolt valve cover to your modern GM LS engine. These cast aluminum adapter plates include hardware to mount three different generations of coil packs under the valve cover without the need of any coil relocation kit, and you retain all the benefits of OE-style coil-on-plug mounting. These adapter plates feature an integrated oil fill and are pre-threaded for PCV ventilation fittings.
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Power valve blowout protection can be added to carb models 2300, 4150, and 4160 with these Holley power valve check ball kits. These kits include a spring, a brass seat and check ball, a drill bit, and a stop. They will effectively protect the power valve, and are easy to install.
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$31.79
$28.61
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Do you need to refurbish your tired Holley carburetor? A Holley Renew kit brings your carb back to original specs and like-new condition! These carburetor Renew kits from Holley come complete with all of the necessary gaskets, O-rings, pump diaphragm(s), needle and seat(s), power valve(s), detailed instructions, and hardware for a complete rebuild. When a Renew is in order, trust Holley to do it right!
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Holley boost control solenoids are designed for optimal performance when using the boost control function of Holley EFI. Some setups require two solenoids and some require one. They're driven by a Pulse Width Modulated (PWM) output of the ECU. It is advised NOT to use the PWM+ outputs on a Holley HP ECU, but rather use the PWM- outputs. If you have a Holley Dominator ECU, use either the PWM- outputs or a PWM+ output on the J2B connector.
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Holley accelerator pump tuning kits are composed of a selection of accelerator pump hardware components, including pump diaphragms, pump nozzles, pump cams, and related parts. Contained in a convenient plastic parts case, these kits have all that is required to properly tune and calibrate the accelerator pump circuit(s) for your street, drag, Circle Track car, or tow vehicle. A handy parts guide is affixed to the inside case cover to assist in reordering components when necessary.
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$205.15
On Sale
Holley carburetor tuning/calibration kits contain a selection of main jets, pump nozzles, and power valves in popular sizes, all contained in a handy and durable compartmentalized plastic case. Ideal for trackside tuning, these kits provide a quick and easy way to accomplish your carburetor tuning with the correct parts. In addition, the parts case allows you to keep parts organized and readily at hand. A handy parts guide is affixed to the inside case cover. Numbers referenced on the parts guide will assist you in reordering components when necessary. Gaskets are included to facilitate carburetor re-assembly.
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$182.95
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Holley Fast Kits include the most commonly replaced parts you'll need to bring your Holley carb back to its original condition. Each kit contains genuine Holley service parts, explicit step-by-step instructions, a detailed tuning guide, and a package that serves as a handy parts tray--all at an affordable price.
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Holley dual tank fuel pump kits will allow you to pick up additional fuel in the tank. They include an in-tank fuel pump, relay, wiring harness, and fuel filter. The fuel pump kits are available for 1, 2, and 4-barrel Pro-Jection systems.
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$145.95
$131.35
On Sale
Do you need to refurbish your Holley remanufactured carburetor? A Holley remanufactured kit brings your carb back to original specs and like-new condition! These remanufactured carburetor Renew kits from Holley come complete with all of the necessary gaskets, O-rings, pump diaphragm(s), needle and seat(s), power valve(s), detailed instructions, and hardware for a complete rebuild. When a Renew is in order, trust Holley to do it right!
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$94.15
$64.35
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$84.75
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Holley carburetor renew kits are original equipment rebuild kits and are available for all Holley marine carburetors as well as Carter and Rochester. Each kit contains all parts and gaskets that are necessary to restore like-new performance to your marine carburetor. Detailed instructions are also included to guide you through the rebuilding process. Start off the season with one of these quality Holley Renew marine repair kits--it's your guarantee for trouble-free cruising!
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