Chevy Rams horn

What year and model used the Chevy center dump Rams horn exhaust. I need to get donut gaskets..... and Parts Store don't know either.

 

What size outlet? - My 57 had 'em (small ones) - High Horse 60s vettes used the large outlet....

 

weren't ram horn's 2 inch and 2 1/2 inch?

 

Yup, with the huge majority being 2". DD

 

The 2 1/2" Corvettes were mid '60s, seems like '64 to '67 at least. the smaller ones were on trucks up through '69 I think, but the left side was the straight down one. full size, chevelles, and Chevy II wer '57 to about '67. Alot were straight down on 1 side at least, but the donuts would be the same. The heat riser butterfly was on the passenger side, but I think takes the same donut. I'd ask for 64 full size or Chevelle.

 

This is a set I did years ago. as I remember one side had a gen. bracket on it. I cut it off and uses a grinder on them. They are 2/12 dump.

 

This is a better photo.