Help ID my engine?
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Joined: Jul 2016
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Help ID my engine?
I bought a 66 F-100 and was wondering if anyone could help ID my engine.
The Block is stamped 66 and below that 352, however, on the lower part of the block it is also stamped C7ME-A. I believe that the C7ME-A was a 330ci? Yet the other stamp suggests a 352.....
I don't get on these forums too much, so if you know what I am dealing with email me at jmciceblink1981@yahoo.com
The Block is stamped 66 and below that 352, however, on the lower part of the block it is also stamped C7ME-A. I believe that the C7ME-A was a 330ci? Yet the other stamp suggests a 352.....
I don't get on these forums too much, so if you know what I am dealing with email me at jmciceblink1981@yahoo.com
Lead Gopher
Joined: Aug 2012
Posts: 10,021
Likes: 1,569
From: Seattle
The casting numbers and marks on the outside of the block are really only helpful in reducing the possibilities as to what it is. They can't be used for a 100% positive ID in most cases.
For example, my 427 side-oiler has the "352" cast into the front of it. So, you can't use the 352 for much. It helps ID the block as an FE, but I'm not sure a lot more than that can be said about it.
I believe the C7ME-A is going to indicate something 1967 or newer. The "66" above the 352 is on a lot of blocks. I think they made some major casting change that year and it continued from there forward.
If you believe Fordification (not the web site, but the guy) then read this.
C7ME-A engine block numbers, not a 428 ??? - The FORDification.com Forums
About the only way to really know what you've got is to measure the bore and stroke. Stroke by itself will narrow the possibilities and can be done without removing a cylinder head. A stiff wire down a spark plug hole and a sharpie can do the trick. Rotate the given piston to bottom dead center and with the wire on the piston top mark it at the plug hole. Rotate to top dead center and make a similar mark. Measure the difference.
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For example, my 427 side-oiler has the "352" cast into the front of it. So, you can't use the 352 for much. It helps ID the block as an FE, but I'm not sure a lot more than that can be said about it.
I believe the C7ME-A is going to indicate something 1967 or newer. The "66" above the 352 is on a lot of blocks. I think they made some major casting change that year and it continued from there forward.
If you believe Fordification (not the web site, but the guy) then read this.
C7ME-A engine block numbers, not a 428 ??? - The FORDification.com Forums
About the only way to really know what you've got is to measure the bore and stroke. Stroke by itself will narrow the possibilities and can be done without removing a cylinder head. A stiff wire down a spark plug hole and a sharpie can do the trick. Rotate the given piston to bottom dead center and with the wire on the piston top mark it at the plug hole. Rotate to top dead center and make a similar mark. Measure the difference.
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Laughing Gas
Joined: Dec 2010
Posts: 1,091
Likes: 14
From: Tucson, Arizona
I have a source that agrees with your thought that the C7ME-A engine might be a 330 medium duty FT one. As TA455HO says, the only way to really know is by checking the bore and stroke. The 330's bore is 3.875 and the stroke is 3.50. This is the same stroke as the 352 and 360 FE truck engines have, but their bores are 4.00 and 4.05. I see a "remanufactured" tag on your picture so these measurements may not be valid either. Once you check the bore and stroke you'll know what you have.
Mountain Pass
Joined: Apr 2016
Posts: 144
Likes: 2
From: Skagit County, WA
Don't the FT's have a different balancer and engine mounts, more along the lines of how the Y block did with the bellhousing?
The casting number helps but can you get to the date code on the block? That can really help narrow down if it's a 352 or 360 when you measure the stroke. IT should be near the oil filter adapter. Basically you won't end up with a 352 if the casting date is 68 or later...that's a very rough guideline.
I recently went through this on one of my trucks as well, I knew the stroke and that the casting number could be a 352, 360 or 390. I only was able to fully confirm that it was a 352 when I had the heads off to head gaskets; then I found it was a .040 over 352.
The casting number helps but can you get to the date code on the block? That can really help narrow down if it's a 352 or 360 when you measure the stroke. IT should be near the oil filter adapter. Basically you won't end up with a 352 if the casting date is 68 or later...that's a very rough guideline.
I recently went through this on one of my trucks as well, I knew the stroke and that the casting number could be a 352, 360 or 390. I only was able to fully confirm that it was a 352 when I had the heads off to head gaskets; then I found it was a .040 over 352.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
Casting numbers are foundry marks, are worthless for identifying what size the FE engine is. 352/360 stroke is the same: 3.50."
when you measure the stroke.
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