Trying to quiet down gurgling exhaust - The 1947 - Present Chevrolet & GMC Truck Message Board Network

69-72 · 06-11-2017, 10:03 AM

I have been fighting this problem for years. On my 72 Blazer the exhaust sounds like a tractor at idle, gugrgly. Engine is pretty much stock with ram horn straight dumps. I put in a new 2 1/4" exhaust from Hearthrob a few years ago with dynomax turbo mufflers. I added a crossover pipe that didn't help. I rebuilt the engine over the winter hoping that might help, didn't. Now I changed over to a longer mangaflow set of mufflers and I still can't get it to be reasonably sounding.

What's left?

06-11-2017, 10:03 AM	#1
69-72 Registered User Join Date: May 2008 Location: 204 Posts: 903	Trying to quiet down gurgling exhaust I have been fighting this problem for years. On my 72 Blazer the exhaust sounds like a tractor at idle, gugrgly. Engine is pretty much stock with ram horn straight dumps. I put in a new 2 1/4" exhaust from Hearthrob a few years ago with dynomax turbo mufflers. I added a crossover pipe that didn't help. I rebuilt the engine over the winter hoping that might help, didn't. Now I changed over to a longer mangaflow set of mufflers and I still can't get it to be reasonably sounding. What's left? __________________ 1969 Chevy Custom Camper 3/4 ton Rust free survivor 1972 Chevy Blazer CST 4x4 Almost Rust free survivor 1972 GMC Jimmy 2wd Undergoing surgery



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