Quote:
Originally Posted by 72freak
This is a common misconception. Straight dump 2.5 ram horns clear fine. I put them on every 67-72 I built over the past 20 years. 2x4, 4x4. Now with that said, the kick backs do allow for less of a bend at the start of the exhaust pipe and i will certainly give them a try on one of my next builds!.
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Interesting. I had a pair of the 2.5" Dormans that would have required a very tight radius bend on my old 69 C10. I am partial to large mandrel bends, and doubt one could be made that tight. The larger the radius the better! However, those manifolds would have worked on a K10, because the engine was mounted farther back.
On my 82 C10, I might have been able to make them fit had I notched the motor mount clam shells, but would have had the same issue with the tight bends.
If the OP needs manifolds, I have these sitting on the shelf. They're for a 96-up 350. I used them on my 82 C10 for a year or so before I switched to headers. What I like about them is they don't have air injection ports. The stub pipes and flanges are 2-1/4".
