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Holley
Holley UK – Carburetors, EFI Systems & Performance Parts Holley is a legendary name in the world of performance. Since 1903, Holley has been at the forefront of fuelling technology, powering everything from classic hot rods to modern race cars....
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Holley 26-510
FUEL CELL VENT KIT
10 AN
Part TypeFuel Tank Vent Hose Kit£161.99 inc VAT£134.99 ex VAT -
Holley 26-509
Fuel Cell Rollover Valve
10AN ORB ROLLOVER VALVE
Part TypeFuel Tank Vent Valve£40.99 inc VAT£34.16 ex VAT -
Holley 26-505
Fuel Pressure Gauge
Liquid-Filled - Mechanical - 0-30 PSI
Part TypeFuel Pressure Gauge£122.99£115.00 inc VAT£95.83 ex VAT -
Holley 26-504
Fuel Pressure Gauge
Liquid-Filled - Mechanical - 0-15 PSI
Part TypeFuel Pressure Gauge£106.99£100.00 inc VAT£83.33 ex VAT -
Holley 26-503
Fuel Pressure Gauge
Overview Electric - 0-15 PSI Monitor Fuel Pressure...
Part TypeFuel Pressure Gauge£0 -
Holley 26-502
Fuel Pressure Gauge
Mechanical - 0-30 PSI
Part TypeFuel Pressure Gauge£79.99£74.99 inc VAT£62.49 ex VAT -
Holley 26-501
Vacuum Gauge
2" - 0-30 PSI - 1/8 NPT Brass...
Part TypeVacuum Gauge£76.00£70.99 inc VAT£59.16 ex VAT -
Holley 26-500
Fuel Pressure Gauge
Mechanical - 0-15 PSI
Part TypeFuel Pressure Gauge£61.99£58.00 inc VAT£48.33 ex VAT -
Holley 26-44
Standard Fitting
Standard Fitting 90 deg. Hose 5/16" Thread 1/2-20
Part TypeFuel Hose Fitting£22.99 inc VAT£19.16 ex VAT -
Holley 26-43
Standard Fitting
Standard Fitting Tube 3/8" Thread 9/16-24 (A) x...
Part TypeFuel Hose Fitting£19.00£17.99 inc VAT£14.99 ex VAT -
Holley 26-41
Umbrella Check Valve
Umbrella Check Valve
Part TypeCarburetor Accelerator Pump Check Valve£20.99£19.99 inc VAT£16.66 ex VAT -
Holley 26-37
Fuel Transfer Tube O-Ring
Fuel Transfer Tube O-Ring For Old Style Transfer...
Part TypeCarburetor Transfer Tube O-Ring£13.00£11.99 inc VAT£9.99 ex VAT -
Holley 26-36
Power Valve Plug & Gasket
Main jetting will need to be increased 6...
Part TypeCarburetor Power Valve Block-Off Plug£11.99£10.99 inc VAT£9.16 ex VAT -
Holley 26-mar
Heli-Coil Inserts
Overview Heli-Coil Inserts For Fuel Bowl ScrewsHeli-Coil Inserts...
Part TypeThread Repair Insert£0 -
Holley 26-29
Standard Fitting
Standard Fitting Hose 3/8" Thread 9/16-24
Part TypeFuel Hose Fitting£22.00£19.99 inc VAT£16.66 ex VAT -
Holley 26-28
Inverted Flare Fitting
Inverted Flare Fitting Tube 1/4" Thread 7/8-20 (A)...
Part TypeFuel Hose Fitting£73.00£67.99 inc VAT£56.66 ex VAT -
Holley 26-27
Inverted Flare Fitting
Inverted Flare Fitting Tube 5/16" Thread 7/8-20 (A)...
Part TypeFuel Hose Fitting£22.99£20.99 inc VAT£17.49 ex VAT -
Holley 26-26
Inverted Flare Fitting
Inverted Flare Fitting 3/8" Tube, Fuel Bowl Thread...
Part TypeFuel Hose Fitting£20.99£19.99 inc VAT£16.66 ex VAT -
Holley 26-25
Swivel Fitting
Swivel Fitting Hose 5/16" Thread 9/16-24
Part TypeFuel Hose Fitting£41.99£38.99 inc VAT£32.49 ex VAT -
Holley 26-24
Standard Fitting
Standard Fitting Hose 5/16" Thread 9/16-24
Part TypeFuel Hose Fitting£25.00£22.99 inc VAT£19.16 ex VAT -
Holley 26-feb
Installation Tool Kit
Overview Heli-Coil for Fuel Bowl screws Installation Tool...
Part TypeCarburetor Tool£0 -
Holley 26-186
'-8 AN Male to 7/8"-14 O-ring Port
AN Adapter side seals on the flare (cone)...
Part TypeFuel Hose Fitting£35.99£34.00 inc VAT£28.33 ex VAT -
Holley 26-184
'-8AN Male to 3/4"-16 O-ring Port
AN Adapter side seals on the flare (cone)...
Part TypeFuel Hose Fitting£25.99£25.00 inc VAT£20.83 ex VAT -
Holley 26-183
'-6 AN Male to 3/4"-16 (AN8) O-ring Port
AN Adapter side seals on the flare (cone)...
Part TypeFuel Hose Fitting£25.99£25.00 inc VAT£20.83 ex VAT -
Holley 26-181
'-6 AN Male to 9/16"-18 O-ring Port
AN Adapter side seals on the flare (cone)...
Part TypeFuel Hose Fitting£25.00£22.99 inc VAT£19.16 ex VAT
Holley UK – Carburetors, EFI Systems & Performance Parts
Holley is a legendary name in the world of performance. Since 1903, Holley has been at the forefront of fuelling technology, powering everything from classic hot rods to modern race cars. Known for their carburetors, EFI systems, fuel pumps, and complete performance solutions, Holley remains the first choice for enthusiasts worldwide.
The Holley Legacy
Holley carburetors became an icon in American muscle cars and motorsport, appearing on millions of vehicles over the decades. Today, Holley’s reach extends far beyond carburetion, with a massive catalogue that includes EFI systems, intake manifolds, exhaust solutions, ignition systems, and even full fuel delivery kits.
Why Enthusiasts Choose Holley
- Unmatched History: Over 100 years of performance innovation.
- Complete Solutions: Everything from fuelling to exhaust under one brand family.
- Motorsport Proven: Trusted in drag racing, circle track, and street performance applications.
- Modern Technology: Cutting-edge EFI systems that bring classic builds into the future.
Popular Holley Products
- Holley 4150 & 4160 Carburetors
- Sniper EFI Conversion Kits
- Holley Terminator X Engine Management
- Fuel Pumps & Regulators
- Holley Intake Manifolds
Holley in the UK
Billy’s Speed Shop brings Holley performance parts to the UK, eliminating the cost and hassle of importing. Whether you’re restoring a classic V8, tuning a modern LS swap, or building a drag car, Holley offers the solutions you need – available now with fast UK delivery.
Fuel your project with Holley UK performance parts – order today at Billy’s Speed Shop.



