Mickey Thompson 4-2-1 Headers "Tri-Y"

**SuperNovaSS** · #1 06-23-2014, 09:18 PM

I thought I would share these vintage M/T 4-2-1 headers. I have seen a few sets for FE Fords over the years but never a BBC set.

Also, I was wondering if anyone has an old Mickey Thompson catalog out there and may be able to verify the application for me. The flange on each header is stamped 1304. I was told these came off of a 1965 Chevelle so I imagine thet fit 64-72 Chevelle, 70-up Camaro, and 55-57 Chevy. I just want to be sure. And yes, these will be for sale here once I verify the application and figure out the value. Sorry for the "dirty" pictures.

Thanks!

Jason

**SuperNovaSS** · #2 06-30-2014, 03:59 PM

Does anyone have a old Mickey Thompson catalog?

Thanks,

Jason

**SuperNovaSS** · #3 01-07-2015, 04:13 PM

Still looking for info on these headers. The full stamping looks to be 1304 591a.

Thanks,

Jason

**Day2_69Z** · #4 01-07-2015, 08:11 PM

Jason are you sure these are M/T's ?
My 72 catalog shows nothing of
4-2-1 , like these.
All the part #s are 3 digit - such as
201-4 or 202-1.

you may older than '72 items or a different manufactor.

Regardless , theses do look Chevelle front steer Headers and in Damn nice Condition.

novadude · #5 01-07-2015, 08:43 PM

Small long tubes, 4-2-1 design, Collector that isn't grossly oversized... I'm thinking header designers were pretty smart back then. The 4-2-1 with a tight "choke" at the collector seems to be the way many custom headers are going these days. Just check out Engine Masters competition.

I'm running some Doug's 4-2-1 headers on my Chevy II. Doug's / Doug Thorley has always been a big proponent of Tri-y - maybe they made them?

**markjohnson** · #6 01-08-2015, 02:13 AM

Belanger also made several Tri-Y configuration headers.

**SuperNovaSS** · #7 01-08-2015, 03:27 AM

Hmmmm, I was told they were Mickey Thompson but maybe the guy was guessing? I'm pretty sure M/T made a header this style but maybe others did also. Thanks for the replies guys.

Jason

**Day2_69Z** · #8 01-08-2015, 03:44 AM

they are nice, I'd like a set of SB camaros...or something like these, gotta be 40+ years old in great condition....
I have Stahls & Appliance long tube...

**67 Nova Boy** · #9 01-08-2015, 04:01 PM

Jason,
1972 Holley/Mickey Thompson catalog..as said, must be another brand of Headers.

Dave
67 Nova Boy

**SuperNovaSS** · #10 01-20-2015, 09:24 PM

I posted these headers in the classifieds for anyone who is interested in them. Here is a link to the ad:

https://www.yenko.net/ubbthreads/ubbt.../topics/597984

Thanks,

Jason

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