221, 260, 289, 302. The 221, 260, 289 were originally designed for the Fairlane and produced only in the Cleveland engine plant from 1962-1965. The 1964 289 casting number for all 289s was C4OE-6015-C (later an F suffix). In 1965, this number was changed to C5AE-6015-E for the 289 2V, 4V and Hi-Po (note the change to full size Ford designation and 6 bolt bell housings). The first number will tell you the year. You do also have to remember that ford sometimes put engines left over from the year before in their cars. To truly tell if it is the original engine a partial vin number is stamped on the rear of the block on the passenger side right below the head on a flat spot on the block. Hope this helps. The engine serial number on1966 Ford Mustang(in-line 6-cylinder engine) on the driver's side fender, under the hood. On the engine look on the passengers side just above the freeze plugs near the.
by:Cobalt327, Crosley, Jon, Onebadmerc
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![Ford 351 Serial Number Location Ford 351 Serial Number Location](https://www.allfordmustangs.com/forums/attachments/5-0l-tech/110227d1284340023-351w-engine-serial-numbers-dscn2307mod.jpg)
- The number was C8AE-6015-B with 302 marking in the lifter valley. At the very end of the model year some additional 289 blocks must have been discovered as the older C6AE-6015-C blocks appeared again. In 1969 Cleveland continued with 302 production. Windsor dropped 289 production and took up the 351.
- The casting number is hard to read here. Another D7TE-XXXX block, different location on the same end of the block. D7TE castings have had an issue that came out of the Michigan foundry. Foundry casting is located with the date on the top of the block. As long as teh casting number is a TE block, after March 2, 1977 we are safe.
[edit]Introduction
How do you identify SB Ford heads without pulling them off the block and getting the casting numbers?
This is a quick way to reference what you are looking at by using visual clues.
- SB Ford heads were made from a range from 1962-2000.
- Cubic inch displacement ranged from 221-351W.
- Ford used three types of rocker arm setups.
Ford 351 Serial Number Location On Mercury Outboards
[edit]Look for the displacement casting number
The first thing you have to do is pull a valve cover and look for the displacement casting number. Ford was pretty good about casting displacment numbers, but they didn't do it on all engines. There will be two pre-'77 engines that Ford did not do this on. The engines will be the 221, 260. The rest of the pre-1977 SB Ford engines will have a 289, 302 and 351 cast on the top of the head under the valve cover. Post-'77 engines did not cast displacement numbers, only a casting number on the deck side.
[edit]Heads without displacement casting numbers
So what if you want to know what year of 289, 302 or 351W head you have or if you have 221, 260 or 255 heads? Use your visual clues to identify what head you have. First off, if you have a head with no casting displacment number on it, then it must be a 221, 260 or a post 77 255, 302, 351W head. So which one do you have? Look at the rocker arm. If you have a conventional rocker arm with a machined slot in the head for a push rod, you have a 221 or a 260 head. If the head has a bolt down sled fulcrum, with a large hole drilled for the pushrod, then it is a post-'77 255, 302, 351W head.
Next, Ford used two different rocker arms setups for the 289, 302, and 351W and one rocker arm design for the 255. The 289 used a conventional rocker and a rail type of rocker arm. The 302, 351w used a rail rocker arm and a bolt down sled fulcrum. The 255 used only the bolt down sled fulcrum type of rocker arm. The 289 used the conventional rocker arm up to mid 1966 and then switched to the rail rocker arm design. So, if you pull a valve cover and it says 289 and has a conventional rocker arm, it is a pre-'67 head. If it has 289 under the valve cover and it has rail rockers, it is a 1967-68 289 head.
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[edit]ID'ing a 302 head
Let's ID a 302 head. If you pull the valve cover and it has 302 then it is a 302, but what year is it? Ford used two designs of rockers for the 302, rail and sled fulcrum. If you have a 302 with rail rocker arms it is a 1968-1977 head. If you have a head with no displacement casting numbers and bolt down sled fulcrum rockers, then you have a post 77 255, 302, 351W head. The 351W will follow the same basic rules as the 302. So what is the exact year of 302 and 351W heads without having the exact casting numbers?
The 302 can be tricky, so here is how to look for visual clues. In 1968, Ford used adjustable rail rockers on the 302; the rest were non-adjustable. To tell if you have a 1968 302, look at the rocker arm studs. Mp3 encoders for mac. If the stud is not shanked down at the threads (aka 'bottleneck') it is a '68 302 head. In 1969, Ford changed rocker studs to a non-adjustable setup; the stud thread will be shanked down. The post '68 302 will also use a smaller rocker retaining nut than the 1968 302 head. So if you have a shanked down stud and rail rockers on your 302, it is a 1969-1977 head. This is close but not close enough, so how do you narrow it down? Again use visual clues to determine what year of head you have.
In 1975 Ford went to internal smog ports on the the SB heads with a tube connecting both heads together going to the smog pump. So if you have a 302 casting number with rail rockers and tubes on the back of the heads connecting them together, you have a 1975-1977 302 head.
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[edit]ID'ing a 351 head
The 351W is quite a bit easier, but it has some quirks. If it says 351 on the top of the head below the valve cover and has rail rocker arms it is a 1969-1977 351W head. The 1969-1977 351W head will use 16 intake manifold bolts as opposed to 12 for the 221, 260, 289, 302 and 255. In 1978, Ford made both the 302 and 351W head interchangeable with no displacement numbers cast on them.The last part is how to determine a 255 from the 302 and 351W head. The 255 will use small oval ports as opposed to the rectangular ports of the 302-351W. The only way is to pull either the intake or a exhaust manifold. If it has oval ports its a 255, rectangular ports it a 302-351W.
Ford 351 Serial Number Location Lookup
[edit]ID'ing 385 series heads
429/460 Cylinder head casting #'s and application from reincarnation-automotive.com
[edit]Ford part numbers
[edit]Resources
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