Check out the picture posted in this 235 valve cover reply by member Pre '68 Dave.

Per his picture, looks like your engine has an even later 1959-62 valve cover on the 1954 head. The 1954 valve cover (center in his picture) has the oil filler in the forward position and also has 4 "slots" cut/formed (2 towards the front L&R and 2 towards the rear L&R).

Dan

~ Dan
1951 Chevy 3 window 3100
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