Engine ID
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Cargo Master
Joined: Jul 2015
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From: tucson
Engine ID
I have a '64 F250 that a previous owner put what is supposed to be a 390. The truck is an estate purchase, another neighbor told me a couple of months later that the PO told him it was a 390. Where do I find casting #s on the block and heads for ID purposes? The manifold has: 4K7: C5AE9425B. The carb has a motorcraft tag with : D4PE JA A 46 3.
I am just trying to get a better feel for the truck for maintenance and future plans.
Thanks.
john
I am just trying to get a better feel for the truck for maintenance and future plans.
Thanks.
john
Super Moderator
Joined: Apr 2004
Posts: 34,499
Likes: 2,811
Almost impossible to id them externally once they have been fiddled with.
The FAQ at the top of this forum gives bore and stroke dimensions and explains how to feed a wire or dowel down a plug hole to check stroke.
Your manifold has a 1965 casting number, (C5AE) and that number also indicates it was engineered for a full size passenger car. Could have been in a truck. ID 4K7 is a manifold date code, it indicates October 7, 1964, consistant with a 1965 model year item.
The carb tag, D4PE, could translate into 1974.
Decoding info here:
Deciphering Ford Parts Date Codes - FORDification.com
Is that a 2bbl carb?
Block casting numbers are on the right side, with date code under the starter. Picture here:
Ford 352, 390, 406, 427 and 428 Engine Blocks
Head numbers are between the center plugs like so:
http://www.oocities.org/tpls63/trips/m_head2.jpg
Don't be surprised to find this is a 352, probably the most commone FE in '65 and there abouts. Most 390s were 4bbl motors in those days, with, if this is correct, the 390 2bbl being a Lincoln Mercury offering. 390 2bbls became much more common in '66 and later.
http://www.fastfairlane.com/Engines/fespechart2.html
The FAQ at the top of this forum gives bore and stroke dimensions and explains how to feed a wire or dowel down a plug hole to check stroke.
Your manifold has a 1965 casting number, (C5AE) and that number also indicates it was engineered for a full size passenger car. Could have been in a truck. ID 4K7 is a manifold date code, it indicates October 7, 1964, consistant with a 1965 model year item.
The carb tag, D4PE, could translate into 1974.
Decoding info here:
Deciphering Ford Parts Date Codes - FORDification.com
Is that a 2bbl carb?
Block casting numbers are on the right side, with date code under the starter. Picture here:
Ford 352, 390, 406, 427 and 428 Engine Blocks
Head numbers are between the center plugs like so:
http://www.oocities.org/tpls63/trips/m_head2.jpg
Don't be surprised to find this is a 352, probably the most commone FE in '65 and there abouts. Most 390s were 4bbl motors in those days, with, if this is correct, the 390 2bbl being a Lincoln Mercury offering. 390 2bbls became much more common in '66 and later.
http://www.fastfairlane.com/Engines/fespechart2.html
Thread Starter
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Cargo Master
Joined: Jul 2015
Posts: 2,069
Likes: 138
From: tucson
Thanks for the great links and info. It is a 2bbl carb. The only thing I was sure about the engine when I bought the truck was that it wasn't the 292 listed on the warrantee plate on the door.
Thread Starter
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Cargo Master
Joined: Jul 2015
Posts: 2,069
Likes: 138
From: tucson
I have found the following markings to look up on the links:
Passenger side head: C6A 5 8090R between the center two plugs, and L8 531 R by the first plug.
Drivers side head: C6AE-R.
Under the fuel pump: 7A26.
Passenger side block: C6ME A
Thanks again for the site info.
Passenger side head: C6A 5 8090R between the center two plugs, and L8 531 R by the first plug.
Drivers side head: C6AE-R.
Under the fuel pump: 7A26.
Passenger side block: C6ME A
Thanks again for the site info.
Super Moderator
Joined: Apr 2004
Posts: 34,499
Likes: 2,811
Best I can tell (and that isn't very good) those would be standard heads. Like most FE heads, they are plenty good as long as they are in good condition. Engines of that era did not have hardened valve seats, and despite lead in the gas, a burned valve was not uncommon. (our '66 had a burned one a 41,000 miles)
How to Choose Ford FE Engine Factory Cylinder Heads
A compression test will tell the tale on valve condition.
Your date code would be January 26, 1967, which is consistant with a 1966 revision casting number like C6ME. Maybe you lucked out and the short block is a 410. I think C6ME points to either a 390 or 410 as the 352 had left the building at Mercury was dead for '68.
1966 Mercury Engines
How to Choose Ford FE Engine Factory Cylinder Heads
A compression test will tell the tale on valve condition.
Your date code would be January 26, 1967, which is consistant with a 1966 revision casting number like C6ME. Maybe you lucked out and the short block is a 410. I think C6ME points to either a 390 or 410 as the 352 had left the building at Mercury was dead for '68.
1966 Mercury Engines
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