390 or 352
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New User
Joined: Feb 2004
Posts: 1
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From: sacramento
390 or 352
I recently purchased a 56' F-100. They said it had a 390, how can I know for sure? The block ID number says it's a 1966 motor. There is a number on the front of the block (352).
Cargo Master
Joined: Jul 1999
Posts: 2,484
Likes: 7
From: New Egypt, New Jersey
Hi drcota, welcome to FTE!
The 352, 360, and 390 all share the same block. All 3 could have the "352" number cast into the front of the block.
I think one of the easiest way to tell for sure is to remove one of the plugs, and check the stroke.
Here's a thread from the '61-'66 forum with more details:
https://www.ford-trucks.com/forums/s...B%25252Bstroke
Last edited by Kenny; Feb 22, 2004 at 02:23 PM.
