*** IN STOCK SHIPS TODAY *** B&M 174 blower supercharger base gasket. RBS stocks a full line of gaskets for the B&M mini blowers so when a motor is freshened make it a snap to re-install the blower with a fresh new base gasket.
Bolt pattern is 11.50" by 5.50" and blower opening is 8.625" by 2.625". Gasket is .032" thick.