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On Sale
Holley has fittings to adapt different sized fuel lines to bare Holley fuel bowls, as well as hose and banjo fittings for special applications.
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$18.99
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$49.95
$17.09
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$44.95
On Sale
Holley manifold plug and fitting kits allow two different styles of connections within one unit. They are offered to service your mid-mount accessory drive LT/LS, BBC, and SBC cooling manifolds. These genuine Holley fittings are constructed from aluminum and feature a chrome finish for longevity.
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$43.69
$39.32
On Sale
These Holley fuel bowl fittings are an exact fit to ensure a perfect seal. An O-ring is included, so you won't have a fuel leak again.
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$38.13
$34.32
On Sale
Holley offers air conditioner compressor manifolds in a variety of styles and finishes. These replacement line adapters are machined from aluminum or copper and will facilitate your A/C compressor hookup. Mounting hardware is included. Applications include vehicles with a GM LS engine.
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$24.14
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$42.44
$21.73
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$23.34
On Sale
Holley EGT bungs are quality replacement service parts designed exclusively for use with Holley's 8-Channel Exhaust Gas Temperature Monitoring kit (sold separately). Made from 316 stainless steel, these weldment bung fittings feature a built-in step—which keeps the bung held in place during the welding process, ensuring a perfect weld. They're sold individually or in multiple-piece count sets.
Not Yet Reviewed
$184.95
$166.45
On Sale
Holley MAP sensor port plugs are milled from billet aluminum for strength, powdercoated for corrosion resistance, and include an O-ring for a tight seal. They're designed to eliminate LS3-style MAP sensors and work with most intake manifolds.
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$36.14
$32.53
On Sale
Some engine swaps and racing applications do not need the heater, but elimination of the heater is difficult on the 7.3-liter Godzilla engine since the hose inlet and outlet passages are tough to plug and look like a cobbled up mess using traditional hoses, clamps, and plugs. Holley Ford 7.3L Godzilla rear block plug kits include a machined steel billet plug with O-ring seal, mounting bracket, and retaining bolt to block off the rear port with a professional look. Features: * Works with Holley's front/heater block-off kit to block all cooling ports * The plug is designed to handle high pressure and high temperatures--typical conditions of the cooling system * Easy installation without the need to tap holes or fabricate special plugs and caps * Steel plug features a clear zinc-plated finish
Not Yet Reviewed
$19.49
$10.72
On Sale
Holley offers a selection of both dedicated and universal-style fuel lines for their carburetors. Hard lines are chrome plated and double flared at the outlets. Braided stainless steel lines offer premium features such as rugged billet-style construction and AN aluminum fittings.
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$56.65
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$113.95
$50.95
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$102.55
On Sale
Holley EFI fuel system plumbing kits are the perfect complement to your Sniper EFI or Holley EFI kit. These plumbing assemblies are engineered using Holley fuel pumps, regulators, and filters—coupled with Earl's Performance plumbing, to provide a fuel system tailored to your vehicle's specific needs. Components vary, depending on the kit you select.
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$249.95
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$528.95
$224.95
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$475.95
On Sale
Holley Sniper EFI Stealth fuel crossover kits are designed to be used with either Sniper EFI Stealth 4150 or Terminator X Stealth 4150 systems. These pre-assembled fuel crossovers are designed to provide ample clearance between the fuel hose, and the TPS sensor mounted on the side of the throttle body. Available in two variations, both contain a braided fuel hose with crimp-on ends for a leak-free installation and two fuel bowl standoffs. One variation includes a T-fitting and the other a black anodized billet fuel regulator, preset to 58.5 psi, and a mounting bracket.
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$127.95
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$319.95
$115.15
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$287.95
On Sale
Holley offers Fox Body fuel system kits for a variety of applications, including many Ford Mustang models from the 1980s and '90s. These upgrades are designed as direct replacements for your factory fuel system—and include everything required: in-tank fuel pump module, billet fuel filters, fuel pressure regulator and gauge, fuel line, fittings, hardware, EFI-rated clamps, and all-new wiring components. They're designed to use factory fuel line routing and mounting locations for a clean, OEM-like installation. Additional details: * Choose from either a 90 or 139 GPH flowrate pump * Prepares your 1986-93 Ford Fox Body Mustang with a bulletproof fuel system for any engine application * Pump gas and E85 compatible fuel system * Includes 40 ft. of -6 AN or -8 AN nylon braided hose, enough to go from the tank to the engine for both feed and return * Electric fuel pump harness and relay wiring kit ensures the fuel pump receives the proper amperage for improved reliability and consistent performance
Not Yet Reviewed
$1,049.95
$943.95
On Sale
Holley Terminator EFI fuel system plumbing kits provide everything needed for a complete supply fuel system for the Terminator EFI self-tuning engine management system. They are engineered using Holley electric fuel pumps, fuel pressure regulators, and fuel filters, coupled with quality Earl's hose, to provide a fuel system tailored to the needs of your Terminator EFI system. The systems are available with different fuel pumps and types of fuel hose, so you can choose what best fits your application. All Holley Terminator EFI fuel system plumbing kits feature quality Earl's anodized aluminum fittings to get the job done and look good, too.
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$725.95
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$1,399.95
$652.95
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$1,258.95
On Sale
Holley EFI Stealth 4150 fuel logs provide ample clearance between the fuel hose, and the TPS sensor mounted on the side of the throttle body. For use with either Sniper EFI Stealth 4150 or Terminator X Stealth 4150 systems, these fuel crossovers are easy to install, with their -6 AN male inlet that connects to your existing fuel system. They come pre-assembled by Holley to ensure a leak-free installation.
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$75.05
$67.55
On Sale
Holley G-body fuel system kits remove the guesswork when updating your G-body's system. Designed as a direct replacement for your factory fuel system, these kits contain everything required to go from fuel tank to engine bay. They are engineered for use with factory fuel line routing and mounting locations, creating a clean, OEM-like installation. Prepare your G-body with a bullet-proof fuel system for any EFI conversion with Holley fuel system kits. Features: * Pump gas and E85 compatible fuel system plumbing kit * 40 ft. of 6 AN nylon braided hose, enough to go from the tank to the fuel rails for both feed and return * Utilizes as many of the original sheet metal and chassis fuel system routing provisions with minimal to no drilling required * Electric fuel pump harness and relay wiring kit ensures the fuel pump receives the proper amperage, for improved reliability and consistent performance * Pre-calibrated fuel level sending unit works with factory fuel gauge for a simplistic installation—no guesswork about ohm range * Highly detailed installation instructions to guide you, step by step, along the installation process Kits include: * 350 lph EFI fuel pump module * Billet fuel filter * Fuel pressure regulator * Fuel pressure gauge * Nylon braided hose * AN fittings * Hardware * EFI-rated clamps * Fuel level sender * Fuel pump harness and relay wiring kit
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$749.95
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$849.95
$673.95
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$763.95
On Sale
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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$34.45
$31.01
On Sale
Holley power steering hard lines offer a clearance solution. The pressure hose connection on the Type II power steering pump is really close to the pulley making it difficult to attach the hose. Holley power steering hard lines move the connection behind and below the pump for clearance and improved appearance. The special banjo bolt and crush washers provide additional clearance. Holley also includes a mounting bracket that makes the hardline stronger and less likely to crack from vibration or abuse. The kits are made from strong steel and zinc plated.
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$91.65
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$127.95
$70.95
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$82.45
On Sale
Holley weld-on fill cap kits include a cap CNC-machined from 6061-T6 billet aluminum with a bright, black anodized finish for great looks and corrosion protection. They're available with aluminum or steel weld bungs to match your application. Holley weld-on fill cap kit features include: * Allows for installation of a fill cap or inspection plug anywhere needed * Caps feature a laser-etched "Holley Equipped" logo * Easy-to-grip screw-on cap with O-ring seal and a 1.38 in. diameter opening * 1.950 in. O.D. / 1.400 in. I.D. weld bung * 1.810 in. diameter at the step of weld bung * 0.675 in. weld bung overall height * 0.570 in. height at the step of weld bung * 1 1/2-12 in. thread
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$56.19
$30.90
On Sale
Holley power steering remote reservoirs are ideal for applications that can not fit a pump mounted reservoir. These lightweight aluminum reservoirs have an internal baffle and air separator to keep the fluid from getting foamy or overflowing. Choose from two styles of reservoirs--polished aluminum model for custom and racing applications that you can fabricate a mount for or use clamps for mounting, or black finish model that includes mounting bracket. Features: * Aluminum construction * Dual inlet ports support Hydro-Boost brake systems when used with Earls pump adapters * Port sizes: (2) -8 ORB ports on top (inlets) and (1) -10 ORB port on the bottom (outlet) * Includes fittings: (1) -6 AN Male flare to -8 AN ORB, (1) -10 AN Male flare to -10 AN ORB, and (1) -8 AN port plug * Vented cap allows excess pressure to be released
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$178.95
$161.05
On Sale
These machined aluminum EFI fuel rails are capable of handling 1,100+ hp engines. They feature a large inner diameter bore to decrease fuel pressure drop and help cancel out back pulses.
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$228.95
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$415.95
$206.05
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$373.95
On Sale
The amazing HydraMat fuel pickups feature Holley's patent pending design that solves the problems associated with traditional fuel pick-ups in stock fuel tanks, as well as racing fuel cells. During hard cornering, acceleration, stopping, inclines, and low fuel conditions fuel runs away from the fuel pick up which introduces air into the system resulting in poor engine performance and even stalling. The Holley HydraMat fuel pickups are the solution! Surface tension and fluid wicking are the secrets of the HydraMat, giving it the amazing ability to draw from nearly any area that has contact with fuel and then store it in its internal reservoir. As an area of the HydraMat is uncovered, the tiny pores of the media seal off through surface tension, forcing fuel to be contained in the reservoir and drawn from other areas of the mat where fuel continues to be available. The sheer size and coverage area of the HydraMat allows it to pull fuel from virtually any area in the tank or cell eliminating the need for specialty reservoirs and pick up pumps saving cost and greatly reducing complexity. Holley HydraMats are available in various sizes and shapes to fit a wide variety of stock fuel tanks and/or race fuel cells. Features and benefits: * Patent pending design that solves the problems associated with traditional fuel pick-ups in stock fuel tanks as well as racing fuel cells * Greatly reduces the potential for air to enter into the fuel system which can result in poor engine performance and/or engine stalling * Perfect for vehicles experiencing fuel starvation during hard cornering, acceleration, stopping, inclines, and low fuel conditions * Surface tension and fluid wicking allow the HydraMat to continue to draw fuel from the tank or cell even when part of the mat uncovered * As an area of the HydraMat is uncovered, tiny pores in the media seal off through surface tension, forcing fuel to be drawn from other areas of the mat where fuel continues to be available * Unique internal reservoir assists in keeping fuel available at the pickup even under extreme fuel slosh conditions * Eliminates the need for specialty reservoirs, sumps and pick up pumps saving cost and greatly reducing complexity * Also acts as a 15 micron pre-filter eliminating the need for a separate filter before the fuel pump * Can be folded and compressed for easy installation through a variety of fuel cell openings * HydraMats are also available in other sizes and shapes to fit a variety of stock fuel tanks and/or race fuel cells * Not for use with diesel fuels
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$226.95
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$1,049.95
$204.25
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$682.95
On Sale
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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$182.95
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$449.95
$118.95
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$403.95
On Sale
Holley bypass fuel pressure regulator kits are part of a complete line of fuel system products from Holley. Offering several different kits, each features a billet or diecast aluminum regulator with an adjustable psi for precise fuel pressure changes and they are finished for corrosion resistance and good looks. The regulators are fitted with a 1/8 in. NPT gauge port and include an Earl's fuel pressure gauge, three adapter fittings, a barbed fitting for the vacuum port, a mounting bracket, and all necessary hardware. Choose the kit to best fit your project's needs and performance.
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$162.95
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$349.95
$146.65
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$314.95
On Sale
Holley Sniper EFI fuel rails hit the mark every time--on time! It's not enough to shoot fuel to your injectors; the process must be consistent and precise for efficient engine performance. Holley Sniper kits will deliver the performance, and they feature billet aluminum rails with a black anodized finish and a laser-engraved Sniper logo. If your target is the optimum delivery of fuel, equip your manifold with Holley Sniper EFI fuel rail kits.
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$189.95
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$212.95
$170.95
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$191.65
On Sale
Holley billet EFI return-style fuel pressure regulators are space saving options when mounting on the end of the fuel rail or near the throttle body. They are preset at 59.5 psi, and the cap can be removed and re-oriented to suit the desired fuel routing. These Holley EFI fuel pressure regulators feature 6061 T-6 billet aluminum construction, and are machined for all SAE6 ports with three -6 AN fittings included, plus an extra plug to replace one fitting when installed post throttle body/fuel rail. They are compatible with Holley Sniper or Sniper Stealth among other applications, and available with either an all-black or a black/clear anodized finish.
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$235.95
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$249.95
$212.35
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$224.95
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