Phenolic Plastic 4-Port Centre Carburettor Spacer – 1″ & 1/2″ Options

Boost your engine’s performance and reduce heat transfer with this Phenolic Plastic 4-Port Centre Carburettor Spacer, available in 1-inch and 1/2-inch thicknesses. Designed for Holley 4150/4160, Edelbrock, and most 4-barrel carburettors, the 4-hole design maintains strong low-end torque while improving throttle response and fuel atomisation.

Product Specifications

• Material: Phenolic composite (high heat resistance)

• Design: 4-port / 4-hole centre

• Thickness options: 1 inch or 1/2 inch

• Fits: Holley 4150/4160, Edelbrock Performer, and most 4-barrel intake manifolds

• Gaskets and mounting hardware sold separately

Key Features & Benefits

• Reduces Heat Soak – Phenolic construction insulates carburettor from manifold heat

• Improved Fuel Distribution – 4-port design enhances air/fuel mixture balance

• Better Throttle Response & Mid-Range Power – Retains low-end drivability with added performance

• Available in 1″ or 1/2″ Heights – Choose the perfect size for your setup and clearance needs

• Ideal for Street, Performance, or Race Builds – Reliable, easy performance upgrade for classic V8 engines

Why Choose Customville American?
With decades of experience supplying carburettor and induction components to UK enthusiasts, we stock phenolic spacers locally, ensuring fast delivery, no import delays, and trusted American performance parts.