Phenolic Spacer - BMP Manifold 1/2"

The Precision Raceworks Phenolic Spacer is made in the USA from premium fiber impregnated phenolic material.  With a Rockwell Hardness of 100 and a conductivity rating of 2.03 it is the perfect material for insulating between heat generating parts such as the cylinder head and other parts you wish to stay cool like the intake manifold.

Our 1/2" phenolic spacer not only provides a thermal insulation between the cylinder head and intake plenum.  It has also been designed to make use of factory O-Rings rather than messy gasket maker adhesive to ensure an air tight seal each and every time along with easy installation and removal.

A phenolic spacer works by reducing heat transfer from the cylinder head to the manifold which results in reduction of intake air temperature, allowing for cooler air to enter the cylinders which is more dense and reduces chance of detonation in the cylinder.

This spacer is a must for all metal performance manifolds on the market and works without stud extensions for many of the performance manifolds including all BMP intake manifolds.

O-Rings are included (extras are available here), extended studs are available here if needed for your setup.

Precision Raceworks shipping & returns

• Returns: new, unused parts can be returned within 30 days of shipment. Parts that have been installed, mounted or modified can't be returned, refunded or exchanged.
• Restocking fee: eligible returns are refunded or exchanged minus a restocking fee of up to 25%. Shipping charges, insurance and duties are non-refundable, and return shipping is paid by the customer.
• Special orders and customized items can't be cancelled, returned or exchanged.
• Cancellations: orders can be cancelled for a full refund only before they ship.
• Back-orders ship as soon as they become available and can be cancelled for a full refund before they ship.
• Damage or wrong item: inspect your package on arrival and contact us within 2 business days, keeping the original packaging and photos of any damage.
• It's the customer's or installer's responsibility to confirm the correct size and application before installing any part.

To start a return or ask a question, contact us with your order number.