no, you cant tell if there seats in there unless you take it apart. you can look at the tips of the exhaust valves and see if they are all in line with each other, that might tell you something. but maybe not, depends on the guy doing the valve job.

http://s1055.photobucket.com/user/baldybenny/library/

1936 1.5 wrecker,1937 gmc coe,1939 Chevrolet coe,1942 4x4 coe, 1942 coe,1946 dump,1947 2 ton dump,another 1947 2 ton dump,1950 coe,1967 c30,1937 cat 22,1936 Chevrolet 5 window foremans coupe, 1914 ford speedster.