HERE IS A PAIR OF EXHAUST DONUTS and A HEAT RISER GASKET FOR SMALL BLOCK V8 CHEVY
THE DONUTS HAVE A 2 1/32" I.D.
THE Heat Riser Gasket has 2 11/16" BOLT HOLE CENTER.
1957 - 1969 chevy 283 327 " EXCEPT 327 HI PERFORMANCE 300 - 365 HORSEPOWER ENGINES