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Holley needle and seat assemblies can be used as replacements or performance upgrades. Available in different sizes, they're also available in different materials to suit a wide range of applications. Viton® needles are for all gasoline applications, steel needles are used with alcohol or exotic race fuels, and titanium needles are used for their responsiveness during changes in flow rates, as well as for their excellent sealing capabilities. Any way you look at it, you're sure to find the right one for your application.
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Upgrade your carburetor's hardware for maximum performance with the help of Holley. Their needle and seat hardware kits work with all Holley carbs with an adjustable needle and seat. Also keeping style in mind, these kits are offered in gold or black. Kits include adjusting nut, lock screw, gaskets, and O-ring.
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Holley steel carburetor needle and seat assemblies are adjustable. You can adjust your float without removing your fuel bowl. They're ideal for high power applications like gas and alcohol-fueled racing engines.
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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 electronic fuel injectors deliver the performance and quality that you expect when you see the Holley name. They're available either as replacement items to take the place of failed or damaged parts, or as upgrade and tuning items to boost fuel flow when you're cranking up the power in your engine. Many different options are available, including more than a dozen lbs./hr. advertised flow rates. Select the model best suited for your application.
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Holley ECU mounting brackets allow you to comfortably install either the Dominator ECU, Holley HP, Terminator X, or Terminator X-MAX under your Mustang's front passenger seat. They're designed to work with stock seats and seat tracks (modified/race seats may or may not accommodate them). You simply route all your ECU harnesses through the firewall--properly route the wires, install the unit followed by the ECU, and then reconnect your wires and go! Use your laptop to fine-tune the ECU without popping the hood and protect it from engine bay heat with Holley ECU mounting brackets. Order the brackets recommended for your application.
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$110.95
$99.85
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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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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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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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$78.25
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Holley Trick Kits are the inexpensive solution to fuel slosh in your carburetor. They contain all of the parts you need to perform a complete rebuild on your Holley carb, including a vent baffle, high-flow needle and seat assemblies, high-capacity power valves, pump cam and secondary opening spring assortments, gaskets, and O-rings. Plus, they have extra parts related to carburetor calibration that are required in order to accomplish a real performance tune. These include accelerator pump discharge nozzles and extra gaskets. A carburetor exploded view and detailed tuning guide are also included, with packaging that serves as a handy parts tray. Holley Trick Kits have it all.
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Holley Gen 3 Ultra Dominator carburetors feature a brand new main body, brand new state-of-the-art calibrations, high-volume HP fuel bowls, and sizes up to 1,475 cfm! The metering blocks are fully adjustable (emulsion bleeds, power valve channel restrictors, and idle feed restrictors). These carburetors include redesigned Holley HP fuel bowls for racing. Internal baffling helps to control fuel slosh and minimize float level fluctuations in hard launching or cornering situations. The HP fuel bowls also have material added in key areas (the needle and seat, fuel inlet, and sight window areas) for added strength in demanding race environments and can be plumbed from either side. Some of the many Holley Gen 3 Ultra Dominator carb features include: * Main body 5/16 in. taller than the previous generation * Designed for larger radius air entries optimized using computational fluid dynamics (CFD) software to deliver smoother flow into fully machined, big-bore Venturi * Improved 6061-T6 billet aluminum metering blocks offering improved durability, true gasket sealing (sealing surface integrity), and brightly dipped anodizing for good looks and corrosion protection * Power valve channel restrictors are now machined lower in the metering blocks for improved fuel delivery to the power valve circuit * Accelerator pump channel internally drilled, eliminating the need for an external plug, * Excess material removed for increased fuel capacity * Snap-in-place bowl vent whistle makes removal and/or replacement easier * 20 percent more fuel capacity vs. traditional V-bowl, eliminating fuel starvation and providing consistent air/fuel ratios * Fuel shelf is positioned below the needle and seat to minimize fuel aeration and promote more consistent metering * Fuel trough designed into the floor of the bowl to route fuel flow directly to the jets and assist in keeping them covered by fuel * Clear sight windows on both sides of the bowls for easy and safe fuel level adjustments * Built-in drain plug in the front center of the bowl provides easy access to empty the bowl (contoured entry provides smooth fuel flow directly to the needle and seat) * Designed for use on drag race, Pro Street, or any high-horsepower engines * All-aluminum construction saves 3.8 lbs. over original models (28 percent weight savings) * Dual 50cc accelerator pumps
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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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$672.95
$604.95
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Holley carburetor float kits work with side-hung and center-hung Demon and aftermarket Holley carburetor floats, as well as many OE Holley, Ford, Chrysler, GM, Motorcraft, AMC, and Rochester marine carburetors. Offered in brass and Nitrophyl for internally and externally adjustable floats, they're available as primary floats, secondary floats, and secondary floats with notches that include jet extensions. Holley's wedged floats feature a reinforced float bracket assembly that allows more fuel to flow through the bracket—especially when using bottom-feed needles and seats. Technical notes for Holley carburetor float kits: * Wedged floats are designed for oval track use, so the float stays open in turns * The use of brass floats on the secondary side of Model 4160 carburetors factory-equipped with Nitrophyl floats may result in loss of fuel control and flooding if the floats contact the metering plate * You should only install jet extensions and notched floats in rear fuel bowls
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Holley EFI laptop tuning mats protect your vehicle's paint, while giving you a soft and secure area for your laptop when tuning in the shop, at the dyno, or in the pits. Made from 1/8 in. thick non-slip material that is brake fluid, grease, and oil-resistant, these mats feature the Holley EFI logo. They will keep your laptop in place on slick surfaces such as the roof, fender, or front seat, and their convenient size makes them easy to roll up and carry in a computer backpack or bag.
Not Yet Reviewed
$15.99
$14.39
On Sale
Holley VR Series billet fuel pumps feature brushless pump technology and a twin-screw rotor design. These in-line fuel pumps are capable of high pressures and flows while maintaining a low amperage draw and quiet performance. They are designed to work on high-boosted race cars, endurance cars, and daily drivers. VR pumps will work with gasoline, methanol, and E-85 (compatible for methanol and E85 for competitive drag race use only- when draining and flushing after each race event). The VR1 and VR2 models are capable of a consistent 130 psi, can be fully submerged in the fuel cell or chassis mounted, and feature race-worthy billet aluminum construction for lasting durability and looks. Whether running 300 or 3,000 hp, Holley has a brushless pump for you. Features include: * Pumps can be run in one of two different speeds * Low speed control for low fuel consumption requirements * Full speed for high fuel consumption requirements * Proven for 18.5 V compatibility * Provide sufficient fuel flow for forced induction applications * Built for continuous duty if required * Dual-pump models are designed for endurance racing—use both or one can be a reserve pump * AN O-ring inlet/outlet * High flow and high pressure with low amperage draw * Maximum amp draw of 19 amps for VR1 and 38 amps for VR2 pumps * Not for use on aircraft of any type Note: These pumps are not designed to use standard conical seat-style unions in the inlets or outlets of the pumps. Use of this style fitting will block flow and WILL lead to poor performance and pump failure. The ONLY correct fitting to use is a contoured port fitting with an O-ring seal such as part # EAR-AT985010ERL.
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