Are there any numbers anywhere? If not then the only way to tell is measure the distance between chambers and the over all length and height of them. The chamber opening. I can tell a lot of things by a picture but I also know pictures don't show everything you need to see.
1968 Coupe <53000 miles on her 289 came off the line Jan 21st 1968. I bought it in 1983
2013 Shelby GT500 Born 12/06/2012 number 439 of 530 in DIB and 1 of 9 with Red Stripes over the top and on the seats
The bolt pattern on an FE are mirror image I believe (2 lean forward and two backward). When did Clevelands have 4v heads?
Im pretty sure there was a 4v Cleveland being produced the same years that the 2vs were... The v means venturi so 4v means factory 4 barrel carb.... I know the intake runners and valves were a lot bigger but not too sure on exhaust