Allstar Performance Holley 4500 4-Hole Carb Spacer - 1" Thick 29004BL 1987-1988 Chevrolet R10 Suburban

1987-1988 Chevrolet R10 Suburban

Boot cuff on Suit and Pants

Simply loosen the lock nut and turn to adjust

These cylinder heads do not require offset rockers of any kind

Allstar Performance Holley 4500 4-Hole Carb Spacer - 1" Thick 29004BL 1987-1988 Chevrolet R10 SuburbanSpecially 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",