Re: Oval port BB heads???????
Check your Colvin book for the details..I believe the 206 casting was the first production BB oval port head released for the 65 model year...the 702 was the next version..don't have the book handy but I think thats the deal...probably some minor change to the casting..there were other heads after these ending with 290 heads in 1969-70...open chamber heads started in the 71 model year for regular production engines. By the way I have a matched set of 206's....
wilma
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