engine and trans ID>

[Stormy1]

I purchased a motor and trans out of a 65 mustang and would like to confirm what it is , Block C4DE3015A, 3 frost plugs, was told it was a 200ci, Intake C5DE-CO90-A. Trans C4AP-7A040-C-BK is was taken of tail section.Thanks.

 

[bubba22349]

Well the first ID tip off is the 3 freeze plugs a 200 has 5 so what you probably have is a 170.

 

[Stormy1]

I read some were that the early 64/65 mustangs did have a 3 froze plug 200ci with a 4 bolt main.

 

[170-3tree]

True, in the cross over years, there were a small number of early two hundreds that had three, identifying a 4main t200 however the block is a 64 judging by the "c4" in the casting.

 

[bubba22349]

You could pull #1 plug and use a wire coat hanger or wood dowel to measure the stroke length. Start at TDC make a mark on turn crank 180 degrees or a 1/2 turn and make another mark you would be looking for 3.126 inches roughly 3 1/8 inches travel (stroke) for a 200 if you have 2.940 or not quite 3 inches is a 170.

 

[chad]

...however the block is a 64 judging by the "c4" in the casting...

is his transmission too,
wonder bout his 'c5' intake

 

[170-3tree]

Assuming Ford didn't mess up the trans is also a 64, and the head is a 65.

If that's not the case then, I have misunderstood everything about the casting codes on these engines. I know decoding further, you can tell exactly what you have.

 

[bubba22349]

If that's not the case then, I have misunderstood everything about the casting codes on these engines. I know decoding further, you can tell exactly what you have.

The engineering number (or Casting number) only gives part of the answer it will tell you the year that the part was first designed for. But to know the true year of the part you have to find the date code (day it was cast). Many parts and castings were used for a number years. The head could be original to this engine, when the date codes are both reasonably close, and it can also still be a 1965 engine.

 

[170-3tree]

Ahh thank you for realigning my knowledge bubba.

 

[bubba22349]

 

[Stormy1]

Thanks guys for the help, I'm more confused than ever, but will try the stroke method.