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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 EFI 300-137
Holley Single Plane EFI Intake - GM LS1/LS2/LS6
Includes mounting bolts & washers. Also includes O-ring...
Part TypeEngine Intake Manifold£503.99£461.99 inc VAT£384.99 ex VAT -
Holley EFI 300-136bk
Holley Single Plane EFI Intake - GM LS3/L92 - Black
Includes mounting bolts & washers. Also includes O-ring...
Part TypeEngine Intake Manifold£577.00£529.00 inc VAT£440.83 ex VAT -
Holley EFI 300-136
Holley Single Plane EFI Intake - GM LS3/L92
Includes mounting bolts & washers Also includes O-ring...
Part TypeEngine Intake Manifold£503.99£461.99 inc VAT£384.99 ex VAT -
Holley EFI 300-135bk
Holley Mid-Rise Intake - GM LS3/L92 w/ 95mm Top - Black
Recalibration of the ECU may be required when...
Part TypeEngine Intake Manifold£1,205.99£1,129.00 inc VAT£940.83 ex VAT -
Holley EFI 300-135
Holley Mid-Rise Intake - GM LS3/L92 w/ 95mm Top
Recalibration of the ECU may be required when...
Part TypeEngine Intake Manifold£1,153.00£1,084.00 inc VAT£903.33 ex VAT -
Holley EFI 300-134
Holley LS EFI Manifold - 2x4 Dual Plane LS3/L92
The LS engine architecture does not utilize an...
Part TypeEngine Intake Manifold£716.99£677.99 inc VAT£564.99 ex VAT -
Holley EFI 300-128
Holley Mid-Rise Intake - GM LS3/L92 w/ 105mm Top
Recalibration of the ECU may be required when...
Part TypeEngine Intake Manifold£1,205.99£1,129.00 inc VAT£940.83 ex VAT -
Holley EFI 300-127
Holley Mid-Rise Intake - GM LS1/LS2/LS6 w/ 105mm Top
Recalibration of the ECU may be required when...
Part TypeEngine Intake Manifold£1,205.99£1,129.00 inc VAT£940.83 ex VAT -
Holley EFI 300-126bk
LS126 MID RISE IM KIT BLACK - Holley Mid-Rise Intake - GM LS1/LS2/LS6 w/ 95mm Top - Black
Recalibration of the ECU may be required when...
Part TypeEngine Intake Manifold£1,205.99£1,129.00 inc VAT£940.83 ex VAT -
Holley EFI 300-125bk
LS7 HIRAM IM EFI 105MM LS TB BLACK - Holley LS Hi-Ram EFI Manifold- Black GM LS7
*** The front and rear height measurements listed...
Part TypeEngine Intake Manifold£1,381.00£1,219.00 inc VAT£1,015.83 ex VAT -
Holley EFI 300-124bk
Holley LS Hi-Ram EFI Manifold-Black GM LS7 - LS7 EFI w/ 92MM Throttle Body
*** The front and rear height measurements listed...
Part TypeEngine Intake Manifold£1,330.00£1,219.00 inc VAT£1,015.83 ex VAT -
Holley EFI 300-124
Holley LS Hi-Ram EFI Manifold GM LS7 - LS7 EFI w/ 92MM Throttle Body
*** The front and rear height measurements listed...
Part TypeEngine Intake Manifold£1,330.00£1,300.99 inc VAT£1,084.16 ex VAT -
Holley EFI 300-123bk
Holley LS Hi-Ram EFI Manifold - Black GM LS1/LS2/LS6
*** The front and rear height measurements listed...
Part TypeEngine Intake Manifold£1,381.00£1,204.00 inc VAT£1,003.33 ex VAT -
Holley EFI 300-123
Holley LS Hi-Ram EFI Manifold GM LS1/LS2/LS6
*** The front and rear height measurements listed...
Part TypeEngine Intake Manifold£1,330.00£1,156.00 inc VAT£963.33 ex VAT -
Holley EFI 300-122bk
Holley LS Hi-Ram EFI Manifold - Black GM LS1/LS2/LS6
*** The front and rear height measurements listed...
Part TypeEngine Intake Manifold£1,330.00£1,156.00 inc VAT£963.33 ex VAT -
Holley EFI 300-122
Holley LS Hi-Ram EFI Manifold GM LS1/LS2/LS6
*** The front and rear height measurements listed...
Part TypeEngine Intake Manifold£1,205.99£1,108.00 inc VAT£923.33 ex VAT -
Holley EFI 300-121bk
Holley LS EFI Manifold - 2x4 Dual Plane - Black GM LS1/LS2/LS6
All GM LS Gen 3 engines equipped with...
Part TypeEngine Intake Manifold£839.99£767.99 inc VAT£639.99 ex VAT -
Holley EFI 300-117bk
Holley Hi-Ram Intake - GM LS3/L92 - Black - EFI Hi-Ram Intake for 1 x 105mm GM LS3/L92 Throttle Body
*** The front and rear height measurements listed...
Part TypeEngine Intake Manifold£1,381.00£1,252.99 inc VAT£1,044.16 ex VAT -
Holley EFI 300-117
Holley Hi-Ram Intake - GM LS3/L92 - EFI Hi-Ram Intake for 1 x 105mm GM LS Throttle Body
*** The front and rear height measurements listed...
Part TypeEngine Intake Manifold£1,330.00£1,204.00 inc VAT£1,003.33 ex VAT -
Holley EFI 300-116bk
LS3 BLACK HIRAM IM EFI 1 X 92MM LS - Holley Hi-Ram Intake - GM LS3/L92 - Black
*** The front and rear height measurements listed...
Part TypeEngine Intake Manifold£1,330.00£1,252.99 inc VAT£1,044.16 ex VAT -
Holley EFI 300-115
Holley Hi-Ram Intake - GM LS3/L92 - EFI Hi-Ram Intake, 2 x 4150 (2 x 1000cfm sideways or inline
*** The front and rear height measurements listed...
Part TypeEngine Intake Manifold£1,205.99£1,204.00 inc VAT£1,003.33 ex VAT -
Holley EFI 26-507
Holley EFI Pressure Gauge - Oil-Filled - 0-100 PSI - 1/8" NPT Male Thread
Oil-Filled - 0-100 PSI - 1/8" NPT Male...
Part TypeFuel Pressure Gauge£49.99 inc VAT£41.66 ex VAT -
Holley EFI 26-506
Holley EFI Pressure Gauge - Liquid-filled - 0-160 PSI
Liquid-filled - 0-160 PSI
Part TypeFuel Pressure Gauge£67.99 inc VAT£56.66 ex VAT -
Holley EFI 20-154
Holley EFI Lo-Ram Manifold 105mm Throttle Cable Bracket
For Holley 300-621 and 300-621BK Ultra Lo-Ram
Part TypeCarburetor Throttle Cable Bracket£38.99 inc VAT£32.49 ex VAT -
Holley EFI 20-152
Holley EFI Terminator Ford Transmission Kickdown Bracket Kit
For Terminator EFI
Part TypeCarburetor Throttle Cable Bracket£26.99 inc VAT£22.49 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.



