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05-10-2003, 02:22 PM | #1 |
Registered User
Join Date: May 2003
Posts: 2
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1985 GMC High Sierra help needed!
I can't find diagrams or pictures of stock exhaust, and really need them to pass inspection! Please help if u can! 350 4x4, Dual exhaust.
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05-10-2003, 03:38 PM | #2 |
Born Psycho
Join Date: Feb 2001
Location: brentwood,cal,usa
Posts: 4,938
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go to you local parts house or muffler shop, either one should have books with all the possiblities for your truck. one thing for sure, duals are not factory on your truck if the 350 is factory. some 85s came without a cat converter but all small block trucks had single exhaust. whether or not it came with a converter depends on the G.V.W..at least all this is true in calif.
i've been at the same muffler shop since your truck was built (85) and none of my books show duals on anything but heavy 3/4 or 1 tons with a big block. if my memory serves me correctly, the last year for duals on a small block (from the factory) was 78 and that was only on trucks equipped with a small block 400.
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