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I have Thrush welded. Not sure if it’s a Hush Thrush but they sound great and tail pipes are a must.

:popcorn:

Very light coat. The more you put on the faster it will burn off.

Manifolds on the track 9.1 in 1/8. Headers open 8.5 open, 8.7 closed. On the street those differences are basically nil, that is unless you plan on racing from every red light.

Swapped out manifolds for long tube TTI’S. On the street you will find no difference.

Id sell the ones you have and buy new ones. Mentally it matters.

I have tti’s long tubes on my 67 Valiant with a 4 speed. No issues installing them from underneath aside from a shim under the driver side motor mount.

You have two options. TTi or Dougs.

TTI headers, or Dougs. They install from the bottom.

Hit the search button and type in “headers” you will get plenty of info.

https://www.ttiexhaust.com/Warranty-MaintenanceCare.htm

If you do a search here on Abodies You will get a ton of answers.

Tti’s slide right in but there is a proper way to put them in. They go in from the bottom. You need to remove the center link and or jack the engine up if needed to gain clearance.

Thrush Welded

TTI or Dougs long tube. If there were other option this community would know about it.

I used offset/center when I did mine. 2 1/2” tail pipes. I believe factory is offset/offset.

I have tti’s. Slip right in from the bottom. As far as price, there are some things where price comes in second. Headers on A-bodies is one of those things. Anyone with Dougs or TTI will tell you that.

When I called tti for shortys they were backordered. The man said “why shorties”? Hello! A-body. He said long tubes would slide right in from the bottom. He was right! Plenty of ground clearance too I might add.

Its pretty common to put a shim under the motor mount to clear the torsion bar. As far as dropping them in, my tti headers install from the bottom, not sure about Dougs.

Slid right in still requires some prep work as stated. So here goes. Mini starter for sure. Oil filter housing position change. Car up on stands high enough. I would say as high as most jack stands go. Not like 4 ft in the air! Center link and z bar removed. And slide, thats right, slide...

In fact it is a 4 speed car and yes they slid right in.

When I called tti for shortys the guy at tti said long tubes will slide right in. He was right

I put tti headers on my 67. I just removed the center link and z bar. Drivers side required a shim under the mount but they slid right in.

When I called tti for shorty headers the main said “why shorties?” I said “V8 in A body hello”. The man stated long tubes will fit no problem. He was right.

Yep... and they go in from the bottom.

I never touched my torsion bars. Pulled center link and idler arm though.

You do know those go in from the bottom and you need to jack the engine. They will slide right in that way

When I called tti to order shortys the man said backordered and why shortys? I said A-body hello! He said long tubes will fit right in. They did and ground clearance is excellent. I did get the step headers, nickel plated and they will change color.

Correct. i would also loosen the trans bolts and see if you could push the tailshaft over a bit. Wont take much.