Engine Carburetor Spacer Kit Trackside Kit Has 4-Hole Open and Tapered Inserts Proform Engine Cylinder Head Work Stand these units fit 1955-1982 Chevy

these units fit 1955-1982 Chevy small block and big block engines

5 power valves

Pro Series Model

Using the stretch factors supplied by rod bolt manufacturers

3/8-16 Thread X 3/4 Inch Long

Engine Carburetor Spacer Kit Trackside Kit Has 4-Hole Open and Tapered Inserts Proform Engine Cylinder Head Work Stand these units fit 1955-1982 ChevyEasily optimize your flow rates with the new PROFORM modular 1in carb spacer kit! Each kit comes with one frame and 3 popular inserts: open, 4 hole, and tapered 4 hole. V arious engine combinations have various fuel and air distribution requirements for maximum performance. Lightweight heat resistant phenolic. Made in the U. S. A. Sold As One Kit. Product Details: Engine Carburetor Spacer Kit Trackside Tuning Kit Has 4 Hole, Open and Tapered Inserts 1