Ford engine decode

I've been looking online trying to decode the engine in my Model A hot rod chassis. Any help would be greatly appreciated. It is engine number D1AE-6015-DA11, I have determined that it is a 71 and I think 351 windsor but don't know what it came out of or ??

 

I dont know anything about your numbers but in 71, the 351w only came as a lo-po 2 barrel version and was only used in cars. The high performance 351s were all Clevelands. If you aren't sure which you have, a W has 6 valve cover bolts and the C has 8.

 

Ford didn't do a very good job of identifying their engines. There was originally a small metal tag, retained by the ignition coil bracket bolt, that had more information about the engine. Most of these tags are long gone.

You might be able to find the casting date code on the block near that number, but that will only tell you when the engine was made, it won't tell you what it came out of. BTW, the D1 prefix on that part number tells you only that that casting was first used for the 1971 model year, and they usually used the same casting number for several years.

Fortunately, it doesn't really matter...it's likely from a full size car, and nothing special.

 

My casting book says 351 but not W or C. Refer to onetrickpony and count the valve cover bolts, that will tell you. Or post a picture of it.

 

The front China wall would be taller on a 351-W than the small block 302-289...
Just do a quick look see should tell you what it is...

 

several internet searches show that it's a 351W, not a 302 or C or M

 

This is my engine. I'm just really curious as to what I bought. PO said it came from a Bronco and was rebuilt before he got it. You know how that is.

 

It could have been in a Bronco at one time, sure....since it's probably more than 50 years old, anything could happen.

You probably should be more interested in what parts are in it now, and not so much what it started life as.

And it is a 351W.

 

You could remove a valve cover
IIRC Cleveland’s valves are offset similar to big block Chevy and the W are all in a row like a SB Chevy also I think Cleveland valve covers have 4 bolts on the exhaust side. Looks like 351W to me like Squirrel says.
Dan

 

They are windsor heads, the C and M valve covers are square at the ends, not angled.

 

351 Windsor. 302-351 have the water outlet on the intake manifold, Cleveland’s are in the block.

 

Thanks guys, I spent my life working in a cement factory with little automobile mechanical experience. I knew people on here would know. I'm just glad the engine turns over easily. I started to install the starter and discovered why it came with a new flywheel (not installed).