What is the most common port shape for stock bbf dove heads( oval or square) from around 74'? Thanks
All 429/460 heads from the carburetted engines are oval-shaped. The later 1988 & up 460FI engines have a raised exhaust port that is more akin to a square port by comparison. D0VE heads were installed mostly on 1970 & 1971 model passenger car engines; engines from "around 1974" would have had D3VE-A2A heads.