Need a 6.9 head
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Senior User
Joined: Sep 2008
Posts: 318
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From: Portage Des Sioux, Mo
Need a 6.9 head
Anybody near St Louis have a spare 6.9 head? Bare is fine. I found after I had my heads re-done that I have 2 different castings that have different compression ratios. If any body has 1, I can match either.
And before some one thinks I am on drugs I have the pictures to prove what I say. The 83 had a lower compressin ratio than later 6.9s.
pictures of differances in Pre cups: https://www.ford-trucks.com/user_gal...&albumid=42438
83 head casting numbers.1809199C1, 1805296C1 & C3
84+ 1805855C1, 1809215C91
7.3 1809030C3
I have reason to believe there are other numbers
And before some one thinks I am on drugs I have the pictures to prove what I say. The 83 had a lower compressin ratio than later 6.9s.
pictures of differances in Pre cups: https://www.ford-trucks.com/user_gal...&albumid=42438
83 head casting numbers.1809199C1, 1805296C1 & C3
84+ 1805855C1, 1809215C91
7.3 1809030C3
I have reason to believe there are other numbers
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