Inliners International Forums General Discussion Hi Performance Exhaust diameter and routing

Does anyone know the pipe diameter of an early inline 6 Corvette?

The Corvette has 2 single pipes to the back, each on every sider right?

That means that the one pipe that goes over to the passenger side is about 25% longer right?

I learned that pipes on a split exhaust must be the same lenght.

Any pros or cons?

Thanks, Frank

I'd guess it to be 1 7/8" but cannot confirm.

Bends in a pipe create more restriction than a little extra length. An extra 18 or 20 inches including one or two gentle bends to make the exhaust pipe cross over to the passenger side wouldn't make much difference on those engines since they ran through conventional mufflers anyway. Unless every cylinder was fitted with a pyrometer and an oxygen sensor I don't think even the world's best mechanic could state that 3 cylinders were running better or worse than the other 3.

I just put 1 3/4 pipes on mine. It sounds great!! I was always told that header pipes needed to be the same length, but never the exhaust pipes. I dont think it would matter much in a street car.