Casting number help
I have a 1981 Jeep cj 5. I went to replace the valve cover gasket and discovered that the holes do not line up. After further investigation it looks like this is not the original motor. I think it is a later model engine. a 4.2 liter straight 6 cyl. I found this casting number 509013 can anyone tell me info. on this engine? I need a new valve cover that will fit? help please I need to Ride!!
You are missing a number. Should have 7 digits. Look for the date build code. Passenger side of the block behind the dist look for a flat pad, it will be stamped there. Report back with the numbers and the letter. 81 block casting # 3235444 but that is for a 81-85 and a 86 and a 87-89, but there are some differences in the blocks even with the came casting #.
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