Allstar Performance Holley 4500 Tapered 4-Hole Carb Spacer - 1" Thick BR20043 increased energy absorption

increased energy absorption

eliminates pressure creep

Karting Jacket

Steel Oval Allen Hd Fasteners 5/16"x

Kits include two aluminum 3-1/2" x 3/8" dia

Allstar Performance Holley 4500 Tapered 4-Hole Carb Spacer - 1" Thick BR20043 increased energy absorptionSpecially designed for drag race applications to isolate carburetor from manifold, spacers prevent horsepower robbing heat transfer and increase the distance from the bottom of the carburetor to the manifold plenum for better air flow. Spacers are CNC machined in the U. S. from a polymer compound able to withstand temperatures up to 400F. Available in open or four hole versions for 4150 and 4500 series Holley and Holley style carburetors in 1 2", 1",