Search our extensive catalogue for the required part:
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....
-
Holley EFI 550-602n
Holley EFI HP EFI ECU & Harness Kits - GM LS1/LS6 (24x crank sensor) with Jetronic/Minitimer (Bosch
ECU is certified to ISO 8846, SAE J1171...
Part TypeFuel Injection Conversion Kit£3,038.99£2,799.98 inc VAT£2,333.32 ex VAT -
Holley EFI 550-602
Holley EFI HP EFI ECU & Harness Kits - GM LS1/LS6 (24x crank sensor) with Jetronic/Minitimer (Bosch
ECU is certified to ISO 8846, SAE J1171...
Part TypeFuel Injection Conversion Kit£2,781.98£2,573.99 inc VAT£2,144.99 ex VAT -
Holley EFI 550-601n
Holley EFI HP EFI ECU & Harness Kits - GM TPI and Holley Stealth Ram™, Includes NTK Oxygen Sensor
ECU is certified to ISO 8846, SAE J1171...
Part TypeFuel Injection Conversion Kit£2,935.99£2,708.99 inc VAT£2,257.49 ex VAT -
Holley EFI 550-601
Holley EFI HP EFI ECU & Harness Kits - GM TPI and Holley Stealth Ram™, Includes Bosch Oxygen Sensor
Holley HP EFI systems are equipped with 4...
Part TypeFuel Injection Conversion Kit£2,669.99£2,482.99 inc VAT£2,069.16 ex VAT -
Holley EFI 550-501
Holley EFI HP EFI Universal MPI Retrofit Kits
The following sensors are included: TPS - IAC...
Part TypeFuel Injection System£4,858.99£4,514.99 inc VAT£3,762.49 ex VAT -
Holley EFI 550-500
Holley EFI HP EFI Universal MPI Retrofit Kits
The following sensors are included: TPS - IAC...
Part TypeFuel Injection System£3,835.99£3,566.99 inc VAT£2,972.49 ex VAT -
Holley EFI 543-34
Holley EFI Idle Air Control (IAC) Motor
This Idle Air Control (IAC) Motor is designed...
Part TypeIdle Air Control Valve£121.00 inc VAT£100.83 ex VAT -
Holley EFI 543-3
Holley EFI Throttle Body Injection Throttle Position Sensor - Replacement/Service Part
Replacement/Service Part
Part TypeThrottle Position Sensor£121.00 inc VAT£100.83 ex VAT -
Holley EFI 543-29
Holley EFI Throttle Body Injection Throttle Position Sensor - Various applications
Various applications
Part TypeThrottle Position Sensor£143.99 inc VAT£119.99 ex VAT -
Holley EFI 543-164Part TypeFuel Hose Fitting£151.99 inc VAT£126.66 ex VAT
-
Holley EFI 543-163Part TypeExhaust Gas Temperature (EGT) Sensor Bung£197.99 inc VAT£164.99 ex VAT
-
Holley EFI 543-161
Holley EFI 1/4" Stainless EGT Weld Bung - Sold individually
Sold individually.
Part TypeExhaust Gas Temperature (EGT) Sensor Bung£32.99 inc VAT£27.49 ex VAT -
Holley EFI 543-120
Holley EFI Sniper EFI Coolant Temperature Sensor
Replacement Coolant Temperature Sensor
Part TypeEngine Coolant Temperature Sensor£43.00 inc VAT£35.83 ex VAT -
Holley EFI 543-112
Holley EFI Throttle Position Sensor - Pro Stock Style
Pro Stock Style
Part TypeThrottle Position Sensor£148.00 inc VAT£123.33 ex VAT -
Holley EFI 543-111
Holley EFI Throttle Position Sensor - Replacement/Service Part
Replacement/Service Part
Part TypeThrottle Position Sensor£100.00 inc VAT£83.33 ex VAT -
Holley EFI 538-24Part TypeManifold Absolute Pressure Sensor£160.99 inc VAT£134.16 ex VAT
-
Holley EFI 538-13Part TypeManifold Absolute Pressure Sensor£181.00 inc VAT£150.83 ex VAT
-
Holley EFI 534-56
Holley EFI Throttle Body Wiring Harness - Closed Loop Wiring Harness for Digital 2 bbl Pro-Jection
Closed Loop Wiring Harness for Digital 2 bbl...
Part TypeFuel Injection Wiring Harness Adapter£55.00 inc VAT£45.83 ex VAT -
Holley EFI 534-52
Holley EFI Vacuum Manifold
The Holley EFI Vacuum Manifold is an excellent...
Part TypeAir Line Junction Block£77.99£74.99 inc VAT£62.49 ex VAT -
Holley EFI 534-49
Holley Oxygen Sensor O2 Bung Weld-In Style - Used on any application that utilizes an O2 sensor
Requires welding and a 7/8" hole to be...
Part TypeOxygen Sensor Bung£19.99 inc VAT£16.66 ex VAT -
Holley EFI 534-39
Holley EFI Dual Tank Fuel Pump Kit
In addition to the items included in this...
Part TypeFuel Tank£161.99 inc VAT£134.99 ex VAT -
Holley EFI 534-38
Holley EFI Dual Tank Fuel Pump Kit
In addition to the items included in this...
Part TypeElectric Fuel Pump£598.99 inc VAT£499.16 ex VAT -
Holley EFI 534-37
Holley EFI Dual Tank Fuel Pump Kit - Fuel Pump Kit for Holley 2 bbl TBI EFI systems up to 400 HP
In addition to the items included in this...
Part TypeElectric Fuel Pump£691.99 inc VAT£576.66 ex VAT -
Holley EFI 534-35
HOLLEY EFI 1/8NPT SENSOR BLOCK - 1/8-27 NPT SENSOR BLOCK
1/8-27 NPT SENSOR BLOCK
Part TypeFuel Pressure Regulator Bracket Mount£71.99 inc VAT£59.99 ex VAT -
Holley EFI 534-321
Holley EFI 180 Degree Fitting Assembly - Fits 2011-2023 Ford 5.0 Coyotes
Fits 2011-2023 Ford 5.0 Coyotes
Part TypeFuel Line Fitting£61.00 inc VAT£50.83 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.



