My Big Bolt has the 283 V8, 2 bbl with a 2-piece oil bath. The gasket at the carburetor is thick paper/gasket material, the inner seal between the 2 pieces is a rubber gasket roughly 1/8" thick.
1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy
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