The top of the adapter is machined to accept a #10AN hose end to facillitate the installation of a custom crank case evacuation system, PCV system, or for use with a vacuum pump. Total adapter length is about 1.8", with about 1.25" above the flange of the cover.
Beefcake Racing is an Authorized Dealer for Metco Motorsports, call 1-855-827-7223, 9am-9pm EST
METCO PARTS ALSO CONSIDERS THEIR PARTS RACE PARTS AND THEY DO NOT ACCEPT ANY RETURNS ON ANY ITEM THAT THEY SELL.
Metco Products Cannot Be Shipped to California.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

