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But Mad North-Northwest
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Discussion Starter · #1 ·
Anyone know the dimensions of the stud that connects the cast iron headers to the exhaust (not the stud in the head)? I know it's 8x1.25 on the threads, but I need to know the length. Is it a fully-threaded stud or is it split in the middle?

Thanks for any help - I need to replace one and want to have the correct part up front.
 

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But Mad North-Northwest
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12,754 Posts
Discussion Starter · #4 ·
Yes, I have the stock setup.

I called Alfa Parts in Berkeley today and it turns out they had the header-to-exhaust studs in stock as an Alfa part. Go figure. Once I get them and make sure they fit I'll measure one and report back.
 

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But Mad North-Northwest
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12,754 Posts
Discussion Starter · #6 ·
Actually, I'm going to have my exhaust guy do it. This does not look like a fun job without a lift. He didn't have the part, though, so I wanted to track that down myself.

The stud isn't broken, just stripped at one point. He's going to double-nut it, heat the cast iron header red hot with a torch to get it to release, and then wrench it out.
 

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But Mad North-Northwest
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12,754 Posts
Discussion Starter · #7 ·
Got 'em. Alfa part # 135 17 821

8x1.25, 72mm total length (12mm tap end, 36mm body, 24mm nut end)
 
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