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Old 06-27-2011, 06:45 AM
Don Meyer's Avatar
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exhaust pipe

I am restoring a 1965 Biscayne & the exhaust manifolds I have are for 2" exhaust pipes(duals).

I had one 2" exhaust pipe bent to the shape of a rod I used for a pattern.

The exhaust pipe looks small.....are dual 2" pipes large enough for a low HP Chevy 350?

I am running a performer manifold, edelbrook 600 cfm carb & a RV cam.

Thanks Don

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Old 06-27-2011, 12:12 PM
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Should work fine for the motor.
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Old 06-27-2011, 04:02 PM
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After your 2" pipe comes off the manifold and under the car, you can increase the size to 2 1/2" with an adapter.
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Old 06-28-2011, 05:21 AM
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The 2" pipes are big enough for a mild engine, unless you want to switch to headers. Most of your restriction is in the exhaust manifold, so larger pipes won't make much difference. Use low restriction mufflers and an H pipe to get the most you can out of the 2" pipes.

You could also use 2 1/2" Corvette rams horn manifolds and a larger exhaust, but I'm not sure if the routing (straight down) will work with your car. Dorman sells them as a standard reproduction part, so they are easy to find and not that expensive.

Bruce
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Old 06-28-2011, 05:53 AM
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Thanks for all the replies. I will stay with the 2" pipes unless the Gods
deliver me a big block.

Thanks again Don
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Old 06-28-2011, 06:33 PM
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Quote:
Originally Posted by 75gmck25
The 2" pipes are big enough for a mild engine, unless you want to switch to headers. Most of your restriction is in the exhaust manifold, so larger pipes won't make much difference. Use low restriction mufflers and an H pipe to get the most you can out of the 2" pipes.


Bruce
^^^^^^^ x2
go info
i agree
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Old 03-10-2012, 01:48 AM
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An efficient exhaust system allows the waste gas and compound to escape quickly out of the system and also to reduce the noise generated by the engine. If something is wrong with your engine, it will generally show symptoms. When you have smoke coming out your tailpipe, it might help point you towards what is broken with your motor. Article resource: Diagnosing a problem through your exhaust pipe
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