Hot Rods What engine do these Sanderson headers fit?

I bought these "like-new" Sanderson headers at an estate sale without knowing exactly what they fit. I have spent a least an hour on Sanderson's website trying to figure out what they fit but am having no luck. The closest likeness I found was 351 Ford Cleveland but even those were not exactly like these. To me the distinguishing feature is the 8 flange-bolt holes all in a row. I am hoping a HAMB member can help me ID theses things! Thanks

 

Ford

 

^^^^^^^^^^ as stated....

 

If they're not SBF(289,302,351W),then their BBF 429-460.The gaskets make me think 429-460.

 

Ok to help on engine size and such

https://www.summitracing.com/parts/...1596238498148&utm_content=GSAPI+5d5b035cbca64

429/460

 

What is the number stamped in those exhaust gaskets? Is their a brand name?

 

My Sanderson Desotos have a code engraved on the head side of the flange.

 

I will peel off the gasket and see if there are any numbers on the flange. Thanks for all the help everyone!

 

Phil, I already thought of that but I cannot read the numbers.

 

Those are the ones!!! Thank you so much!

 

Can you use the old detective trick and put a paper over the numbers and the side of pencil lead to make a better image of the gasket numbers?