Gold Lifetime Member
Join Date: Jan 2005
Location: 2 Dog Town in West Texas
Re: Chevy 350 Headers with stock exhaust system
I am guessing you mean OEM as in stock exhaust that came with a Z car? Not much difference than a SS with duals, transverse muffler. Mine were 2 1/4" double walled pipe all way out back before the axle.
But if you are looking for a better fit , from the header pipes, after you remove the stock exhaust manifolds. I would suggest going to Thorley
TriY as they have smaller collectors you can slip fit connections .
TC # 349
Zdld17:69 Z/RS,306, NOR141111, 9N554XXX, 12A, X3G, 59/59,723, AFR 195,CCC282/290HR, TKO 600, BU1122B1E Owner since Dec 1968
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