Allstar Performance Holley 4500 Tapered 4-Hole Carb Spacer - 1" Thick 931021 1/16-3/8 in Grip Range

1/16-3/8 in Grip Range

16 AN Male to 3/4 in NPT Male

Homologation: Snell SA2025 and FIA8859-2024

Multi-Layer Clear

and drag strips throughout the world

Allstar Performance Holley 4500 Tapered 4-Hole Carb Spacer - 1" Thick 931021 1/16-3/8 in Grip RangeSpecially 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",