buying1stpony

I finally pulled the motor out of my 1st pony the #'s under the starter is D10E-6015-AA I think it is 6015 could be 8015. It is a '65, it does have 302 heads though. I am basing this on the angled plugs

remicks

D - 1970
1 - Decade Year
0 -Fairlane/Torino
E - Engine
6015 - Basic Part Number
AA - Design Change

So the engine is from a 1971 Fairlane or Torino which would make it a 302 not a 289

Info came from this site.
http://www.classicmustang.com/decoding_part_numbers.htm

buying1stpony

per what i am finding that '71 motors with 6015 were 351W

remicks

Ok, I thought you were trying to figure out if it was a 302 or 289.

buying1stpony

I know it is not a 289, what is the possibilities that it is a '71 351W

remicks

It is very possible that its a 351W. I'm trying to remember the visual differences between the 302 and 351. I know the 351 is wider and has about a 1.5" higher deck height. I have also been told that the 351W has a 4 more bolts than the 302's intake, but only if I could remember how many bolts were on the intake of my 289.

remicks

Alright, I don't have my car with me to let you know for sure. But doing a little research the 289/302 have 12 and the 351 have 16. That should give you insite into what engine you have. It 351 needs that many bolts because its intake is much larger.

buying1stpony

I went and counted 12, but the pics of 351W i have seen show the top radiator hose connecting to the front ( not top) of the block as mine does on top

69FECoupe

289/302/351W all have the thermostat housing connected to the intake manifold. 351C's have thethermostat housing boltedstraight to the top of the block. Since it's a 65 I doubt if it is a 351W or C. And I doubt that anyone would put the more restrictive heads from a 302 on a 351W.How about a picture?This site may help: http://www.fordification.com/engineID.htm

remicks

Alright I went over to a truck forum, and found this bit of info.
"just to the right of the distributer..there will be a rib cast into the block from the intake mounting surface to the distributer mounting deck. If it has this extra rib, it is a 351. A 302 does not have this rib"

Also
"seems to me that 289/302 intake is 7/8" across & 351 is 10" across."

Hopefully this should clear up the confusion. I had to go elsewhere for info because this is not my area of expertise.