Clarke, I have a good set listed in the 'for sale' section of the Swap Meet forum. It meets all of your qualifications except that it needs a new gasket between the two manifolds. The exhaust matches your casting number, but the intake is 3836922. They should fit your 261. You can try to cross reference the intake casting numbers to verify or perhaps others can chime in with info.

Pix and full description on the Swap Meet listing.

If you want the exact same casting numbers as you have today, maybe DaveV can handle the matching good intake and I can handle the matching good exhaust.

It is against the rules to sell things on this forum, so if you are interested it would probably be better to communicate with DaveV and me with PM's instead of postings.

Thanks,

Matt

Last edited by Maybellene; 06/19/2016 6:36 PM.