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DonP

5 speed conversion - Stahl header?

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Hi all,

 

Just starting the 5 speed and 3.90 lsd conversion and was wondering if I am going to have any clearance issues with my stahl header and the 5 speed box?

 

I am sure there must be a few people that have used this setup. 

 

Thanks in advance!

 

Don 

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No problem at all.  You just need to move the exhaust hanger at the back of the trans further down the pipe. 

Edited by Preyupy

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37 minutes ago, Dudeland said:

Use the hanger, or you will eventually get a crack.... ask me how I know :)

 

 

Mine cracked, again, even after I added a hanger. I just added a mesh transition piece after the header.

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1 hour ago, Dudeland said:

Use the hanger, or you will eventually get a crack.... ask me how I know :)

 

 

Using the transmission hanger didn't prevent cracks in the Stahl header for me. It cracked, it was welded, and it cracked again, and it is now gone, back to stock tii manifold and downpipe. The rest of the engine was returned to stock as well, so it only seemed proper. Having a "faster" engine was not worth the extra upkeep for me.

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Thanks for the confirmation and info guys!

 

Don

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The Stahl header I have was gas welded with a hard braze- I don't know what they used.

 

When it cracked- actually, #4 tube popped right out of the flange-

 I only had the standard bronze rod at the track, so I used that.  It's actually

held up fine, but it's obviously not original.

 

Yes, it clears a 5- speed.  Yes, they're not super durable.  Tie your engine down.

 

t

 

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Here’s the bracket we made for a long tube header and 5 speed. It’s worked well for 20,000+ miles. Simple modification to the OEM transmission hanger. 

 

B34BADB1-1F0F-445F-8D56-345862F25D31.thumb.jpeg.bb91c38c0153dbcf1b5f5dc2a1f640d4.jpegB32B8124-937C-484D-9E3C-8528DEF6DE0B.thumb.jpeg.be5b578158d2f0309a99ea3808c7a722.jpeg

 

Ed

 

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Just ran across this letter by Mr. Stahl in an old Roundel magazine.  He describes a special hanger extension offered by Stahl to reduce the tendency of cracking.

image.png.f752877064f8b9f14d2990a2f510136c.png

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Awesome, thanks for the pictures, they will be a big help!

 

The faq delivers as always. 

 

Don

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