The 1947 - Present Chevrolet & GMC Truck Message Board Network - Stock 454 with 3" exhaust, is it too much?

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savatreatabvr

12-26-2014 11:44 AM

Stock 454 with 3" exhaust, is it too much?

Somewhere down the line of previous owners a 454 was dropped into my 1973 Chevy c20. It originally came with a 350 but when the 454 was dropped in they changed the exhaust system to a 3" single pipe with one muffler and no cat. My question is, would a smaller pipe or smaller dual pipes help or hurt performance?

Kinze

12-26-2014 01:22 PM

Re: Stock 454 with 3" exhaust, is it too much?

Single 3in. is perfect for a stock big block.

johnnyclack

12-26-2014 03:01 PM

Re: Stock 454 with 3" exhaust, is it too much?

If it's stock, leave as is :mm:

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