I was expecting these ones in brass since a long time. Have used Golan fuel valve ad outlet products since a long time because they perform well and offer many options beyond the traditional choices. First, their petcock (polish, chrome, brass and last minute now in black!) delivers a flow of 12 oz per minute, carries a mechanism preventing a frozen valve and providing a secure seal in the “OFF” position with an O-Ring seat securing any leak from the Petcock to the carburetor.
And for all custom builders facing the dilemma of not sufficient space between the fuel tank and the heads for petcock installation, you can use their outlets with their “Fuel Tank Selector” or inline shot off valve. Pretty useful and cool. Golan Products for sale via Custom Chrome.