If its the same adapter I used on my 37 with a 57 235 you will have to drill two holes in the block and mounts a 54 on back water pump on the later 235,I ran a shortened pump for 7 years but could not use a stock fan so when the pump broke and went into the radiator I bought the adapter. I had to remove the grille shell to drill the holes due to space limitations but I am glad I used the adapter plate. Jeff