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Holley has fittings to adapt different sized fuel lines to bare Holley fuel bowls, as well as hose and banjo fittings for special applications.
( 106 )
$49.95
$22.39
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$49.95
Holley fuel rail adapter fittings are designed to connect Holley fuel rails to a GM factory fuel line. They're machined from aluminum (black anodized) or steel (yellow dichromate), and are available in different sizes, angles, and attachment options.
( 3 )
$39.50
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.
( 8 )
$42.44
$21.73
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$38.67
On Sale
Calibrating the right air/fuel mixture is important to gain proper power and efficiency from your carburetor and engine. But for vehicles running E85 fuel, proper calibration is difficult if you don't know the exact percentage of ethanol to gasoline in the fuel. These Holley E85 fuel testers are essential tools that can instantly determine the ratio in the E85 fuel you're using. They fit in your pocket or toolbox and are easy to use. Simply add water to the first line on the testers and then pour in the E85 sample to the second line. Once the water is absorbed, the Holley E85 fuel testers will indicate the amount of ethanol in the fuel.
( 39 )
$38.17
$34.35
On Sale
Holley wiring harness connectors provide one-stop shopping for your wiring needs. Along with their extensive line of wiring components, Holley offers a tremendous assortment of genuine OEM connectors to hook up your wiring project properly, securely, and completely. They're available individually and in packs of 10—with most including pins, seals, and TPA. Finish wiring your Holley-powered machine with their quality wiring harness connectors.
( 9 )
$52.69
$21.05
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$49.95
On Sale
Holley EFI GM-style fuel filters have a built-in regulator to provide a simple and clean means to fueling your LS swap. Available with OEM-style or -6AN connections, they feature an internal regulator set at 58 psi, along with an integrated 5 nominal micron rated filter. The bypass design allows you to run one inlet with one outlet to the engine, and a return outlet back to the tank. Holley EFI fuel filter regulators are ideal when performing a LS engine swap or any other fuel injection swap that is designed to run at 58 psi of static pressure. Choose the fuel filter/regulator with the proper connections for your vehicle. Features: * All stainless-steel construction for improved corrosion resistance * Designed with one inlet, one outlet, and one return * Fixed pressure at 58 psi * Nominal micron rating: 5 * Can be used with other EFI systems that require 58 psi * Not recommended with fuel pumps that flow over 450 lph * Return line required for proper regulator operation
( 9 )
$53.25
$47.95
On Sale
An air filter is the first line of defense to protect your engine. Holley's Power Shot air filters are washable and reusable. They feature a True Fit design that provides a better seal between the filter and housing, with no filter oil migration into the seal material. They filter the incoming air to protect your engine from road dirt and debris, thereby increasing the airflow, horsepower, and torque of your engine. And, they fit like OE!
( 1 )
$48.33
$43.50
Holley reducers have been specifically designed to adapt two different size fittings. They are manufactured from durable brass and feature a natural finish. Available in different sizes, Holley fitting reducers make an excellent choice for connecting your fuel or other plumbing lines together.
( 9 )
$22.40
Fuel your wardrobe with Holley LS Fest hoodies. These great looking tops feature soft heavyweight cotton construction with lined hoods and big kangaroo pouch. The warm and stylish tri-tone sweatshirts are accented with bright red Holley logo and LS Fest in gray. Pull on something comfortable that you're proud to wear—the fast looks of Holley LS Fest hoodies.
( 1 )
$32.99
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$39.99
On Sale
Holley has you covered with their extensive line of OE-style wiring components, including connector terminal pins to help you build or service your Holley EFI-powered machine. These pins are available in a variety of styles for different connectors and wire gauge. From replacement connectors and pins … to wire loom and tools—make Holley your one-stop solution for all of your wiring component needs.
( 4 )
$21.18
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$43.72
Holley has you covered with their extensive line of OE-style wiring components, including replacement weatherproof seals to help you build or service your Holley EFI-powered machine! Order the application needed to help you complete your wiring project.
( 1 )
$42.46
On Sale
Give your vehicle the power source it needs with Holley alternator pigtails. These weatherproof plug and wire pigtails are designed for select Holley alternators or similar Delco AD-style alternators. They're fairly easy to install--just connect the yellow wire to switched voltage that is "on" when the key is in the run position. These pigtails have a resistor inline, so a charge indicator light is not required. However, if the vehicle has a charge indicator light, the yellow wire can be connected to it and the light will function. So, for high-amp, high-torque solutions for some of today's toughest applications, give Holley a go!
( 40 )
$25.65
$23.09
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