Racing Power Air Cleaner Spacer - 1/4" Thick - 5-1/8" Carb Flange - Aluminum H761C01L They are then factory sealed

They are then factory sealed to prevent any contamination

7/8 in Screw

early Small Block Chevy (SBC) have dowel pins installed in the block and will not be used

High / Low Gear

Racing Power Air Cleaner Spacer - 1/4" Thick - 5-1/8" Carb Flange - Aluminum H761C01L They are then factory sealedProduct Description: Air Cleaner Spacer Sure Seal 0. 25 in Thick 5 1 8 in Carb Flange Aluminum Natural Sold Individually Started in 1995 and specializing in both aftermarket and OEM markets, the Racing Power Company offers more than 4,800 different parts, including valve covers, dress up kits, air cleaner assemblies, crankshaft pulleys, breathers, light assemblies, and more.