Exhaust advice


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By Talkwrench - 14 Years Ago
I have the following.

292, G heads, B manifold - 600 Holley, Pertronix 2 ignition, standard exhaust manifold, standard cam.

I need to change the exhaust and I have a set of 2" x 22" Smithys that I was going to put on her but the only place that I can find that will do a good job in 316 stainlees steel only has a machine and pipe bender that starts at 2 1/4". Is that too big?

Thoughts on a balance pipe? Its difficult to do as the space is tight, might be too far between the pipes and extra cost..

Cheers!

 
By charliemccraney - 14 Years Ago
In general, I don't think 2 1/4 is too big. However, with stock manifolds, you will have issues at the flanges. The pipe will need to be tapered or dimpled so you can get the nuts on there. 2" is about the limit with stock manifolds and flanges. Flanges are another thing, can they provide the proper flanges for the stainless tubing? They are scarce in regular steel, let alone stainless. They are not like flanges used on newer cars. The balance tube will help and it's generally not an expensive addition.
By YellowWing - 14 Years Ago
For my new exhaust I ordered 2" stainless tube and bends from the link below. Used stainless Hushpower glass packs and no crossover. I am very happy and am giong to try and put up a video and sound bite next weekend so the board can hear. If you decide to go this way you will need some way to cut the tubing and then weld. I bought all the tubing in stainless for about $350.00.

http://www.mandrel-bends.com/catalog/?gclid=CPvExcDr86YCFQkGbAod70lhEQ

By marvh - 14 Years Ago
Does anyone have pictures of a x-pipe or balance pipe they have installed on a 55/56. HT



thanks
By crenwelge - 14 Years Ago
If you are talking about a 55/56, 2" is big enough for anything but the most radical engines. Stock was 2" on single and 1 7/8" on dual. I use nothing but stainless head pipes because I don't want to change them again in my lifetime. And with the tight clearance, it is hard enough to keep 2" from rattling in the frame. 2 1/4" would give you even less room.
By Tom Compton - 14 Years Ago
I had 2 1/4 dual pipes put on with my Spintech mufflers which were 2 1/4 inlet and outlet.  The exhaust guy owns a 56 Meteor 2dr hardtop, has a shop about 6 miles from me and was great to work with.  He used a 2" flange and flaired a piece of 2" to 2 1/4 then ran 2 1/4 to the thru bumper thing-a-majigs and back to 2" to fit them.  Took it back once to get rid of a rattle where the pipe goes thru a framee hole.
By Talkwrench - 14 Years Ago
With the flanges he said he would have to send out to be laser cut in stainless or we weld to the exhisting, but thats defeating the purpose I guess. Hope he had a real good look as to if 2 1/4" would be hard to bolt up at the flange. MAybe I should just get a 2" mild steel press bend done. If the muffers wont last as long as the Stainless and it would have to be cut and modified later it may not be worth it...?? I like the idea of 2 1/4" before the mufflers with balance pipe and then 2" after the muffs w00t