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Om 603 cyclinder head
goose_ss4 Offline

Posts: 1
Joined: Jul 2019
Location: California
Om 603 cyclinder head
Looking for a good cylinder head for my 87 300d om 603 with 722.3

Have a he351 and 7.5mm pump. Runs good but I have a 14 head with a 180k on it. Would like a 17 or 22# head. Know these things are getting hard to find parts, but please let me know.
10-15-2019, 09:58 AM
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crodgers Offline

Posts: 7
Joined: Sep 2017
Location: Columbus
RE: Om 603 cyclinder head
Hows that 722.3 holding up? lol I have a #22 head that I was planning to list soon. I'll throw in a free 722.3 to. You may need a spare with that turbo/pump setup Big Grin

The head is in good shape, doesn't pressurize the coolant system, no noticeable cam wear, etc. . I pulled the motor though because I have low compression on cylinder 2 with a little blue/white smoke. A leak-down test suggested a boo boo on the cylinder wall or rings. But I still need to remove the head to confirm everything with it is tip top. I bought the motor/car in this running condition, and unfortunately don't have the history on it.

I'm located in Ohio though, which may be a deal breaker for you. Figured I'd reach out nonetheless.
01-15-2020, 03:10 PM
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