*** IN STOCK SHIPS TODAY *** Blower snout gasket fits all 4-71 thru 16-71 roots or screw superchargers. RBS offers a cut one to use with a tri-plate front cover or can be used with a full round cover.
Gasket hole is 4.250" and is .065" thick.
Tri-plate gasket, fits all 4-71 thru 6-71 blowers using a stock GM style front cover with a tri-plate. Gasket is .065" thick.