273 rocker info please

Well I hate to inform you I had several 67 belvedere and Coronets I stripped with LA 318 solid lifter motors All my 62 - 66's had poly 318's .

I first came across one in my father in laws 67 belvedere. I was changing his valve cover gaskets. And yes it was a LA 318 I looked. I adjusted his valves for the first time since he bought it.

I was his Hero, It was never that smooth and quiet. That is when he left me marry his daughter. Should have never changed them gaskets!!!

Poly rockers are totally different engines and only 2 valve cover bolts. I may have seen one or two in my 70 years. LOL