Chrome 427 Big Block Chevy Valve Covers & Air Cleaner Combo factory height Part #(MCC66365s) Close up of emblem  Installation tips Be sure to install the stud into your carburetor and check your hood clearance to the stud before closing the hood to avoid damaging your hood. If necessary cut the stud to the correct height and reinstall. When tightening your chrome valve covers make sure to tighten them evenly to the correct torque spec. Do not over tighten the Chrome 427 Big Block Chevy valve covers when installing them! Air Cleaner Steel , triple plated Copper / Nickel / Chrome Size MCC66365s air cleaner is 14 inches in diameter and 3 inches tall Emblems Approximately 1/8" thick Nylon. Heat & fuel resistant . Adhered with thermal adhesive then baked @ 260 degrees Air Cleaner MCC66365s Comes with the air cleaner that has a recessed base, filter, chrome top  and a stud and standard wing nut taped inside Neck Size  MCC66365s has a 5 1/8" air cleaner fits most four barrels, two barrel adapters are available in the air cleaner accessories category  Air Cleaner Base MCC66365s comes with a recessed base air cleaner. It has a total height of 3" from the carb flange (not including wing nut). It will fit Holley, Demon & Quadrejet carburetors. If you are running an Edelbrock carburetor you will need to use MCC150c 1/2 riser to clear the fuel line Restrictions The Air Cleaner is designed for carburetors WILL NOT work on fuel injection Valve Covers  Steel , triple plated Copper / Nickel / Chrome Thickness  MCC66365s Chrome 427 Big Block Chevy valve covers are stamped from approximately .040 thick steel. Pair MCC66365s comes with a set of 2 Chrome 427 Big Block Chevy valve covers Height MCC66365s comes with factory height (approximately 2 1/2 inches tall) Chrome 427 Big Block Chevy valve covers. Each valve cover has one hole in it for accessories and will clear air conditioning Baffled YES, these Chrome 427 Big Block Chevy valve covers come with steel baffles Gaskets NO, these do not come with gaskets. Any Quality gasket made for your engine will work on these Chrome 427 Big Block Chevy valve covers Valve Cover Accessories Valve Cover Accessories Do Not come with the Chrome 427 Big Block Chevy valve covers and are sold separately. They can be located on the left side links on this page or at the bottom of this page in the related items. Each valve cover has 7 mounting holes so you will need 14 bolts or spreaders when ordering for this set     Restrictions  Chrome 427 Big Block Chevy valve covers Will Not work on engines running aftermarket roller rockers Check Out these related items below