Moroso Plastic 1" Open Carburetor Spacer - Fits Holley 4150/4160 Bolt Pattern - Open Plenum Design H763CBF We take great care to

We take great care to maintain a flawless surface to our tools in order to prevent surface imperfections in our body panels

It has a 11-1/2" wide

hardened tip stainless steel exhaust valves with undercut stems for increased flow

55 thread size

Moroso Plastic 1" Open Carburetor Spacer - Fits Holley 4150/4160 Bolt Pattern - Open Plenum Design H763CBF We take great care toAdvanced plastic compounds are specially formulated to reduce heat conductivity 10 times greater than aluminum Reducing fuel temperature inside the carburetor results in a denser, more powerful fuel charge to the manifold Insulating phenolic spacers come pre drilled for alignment pins and include all mounting hardware Gaskets not included Moroso Performance Products is one of the worlds most respected suppliers of automotive equipment for racing and