302 Heads in an Early A.
I switched to 302 castings on my 318 but the main reason I switched is that when I test fitted the 340 driver and 360 passenger exhaust manifolds there wasn't much sealing surface on the bottom of the port. So to make sure I didn't have any trouble using the 340 and the 360 manifolds I removed my original 318 heads and replaced them with the 302 castings. The 302 castings have a much larger (area) sealing surface below the exhaust port. But again, I own a '69 Barracuda which is about 1 3/4" wider between the inner fenders. The steering box and the steering shaft are also a little further away from the engine. Do you have a manual steering box??
treblig
