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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | The light duty trucks had 2 in outlets that pointed back aways. The early models had 2 bolt flange & the later ones (about 71 on) used a 3 bolt but still had the same size outlet. The large trucks used a 3 bolt with 2 1/2 in. outlet. It pointed straight down. I would use 2 1/4 in. pipe reduced the the 2 in flange. You dont want back pressure. It is death to the ex. system on these engines. Use a free flow muffler.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | |
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