Cover is drilled for a oil sight glass and a 1/8" pipe pressure relief valve which are shown in the picture but sold separate. Front cover is set up for 5/16" dowel pins but can be drilled for a larger size. Fits all roots blowers 6-71 thru 16-71.
Cover is shown in pictures anodized gray but can be ordered in black. Please specify if you want starter bosses on the front cover and if you want a GM type front cover or a symmetrical front cover as shown.
RBS carries a full line of gaskets as well for the superchargers if the racer needs.
OIL SIGHT GLASS AND PRESSURE RELIEF ARE SOLD SEPARATE BUT ARE SHOWN FOR PICTURE PURPOSES.
Pressure relief part number #1300-0001 and oil sight glass #1300-0003.
Racer can choose from drop down menu for front cover type.