I have a 1977 F150 that I thought had a 400 in it, according to the VIN. When I got underneath it however, it was plain to see that it wasn't the stock motor. I had a hard time finding codes for the block, but I found two:

D4TE - located by the pass. side front freeze plug

6A29 - located by the oil filter

Can anyone help me figure out what motor I have in my truck?

If there's another set of numbers that I'm missing let me know.

Thanks

 

That truck engine was designed in 1974 and the block itself was cast January 20 /1976.

You didn't give me the suffix after 6050 - ? so I am asking myself what engine was designed for a truck in 1974 ?

How many valve cover bolts ?

 

Hmm...where else should I look? I'm not sure I know what suffix your talking about. It has 5 valve cover bolts, 2 on the bottom and 3 on the top. Thanks, keep the info comin!

 

FE engine.

 

Must be a 360.

You are going got have to measure the stroke or ID the crankshaft to know for sure.

The Suffix I mean should be an A or B

and read like this

D4TE-6050-A
D4TE-6050-B

as shown here

 

5 bolts for the fe, double check by looking at the dizzy, doeas it go through the intake?

 

No it doesnt go through the intake, the intake manifold goes around it

 

With that D4 casting number, it's an FE 360 or 390, nothing else Ford made had 5 valve cover bolts from this time. You might look at the base of the dizzy, just below the rim of the cap...there's are Ford ID numbers there, like: D6TE-12127-AA. Find something like that, and those numbers will ID what the dizzy is and what it was used on. Also look for a carb number, triangular shaped tag on top of carb...and post the VIN the truck might be a 1976. 1973/77's look almost identical.

 

I'm sorry, it does go through the intake manifold. It gets really shallow.

 

Yes but you will need to measure the piston stroke or Ident the crankshaft to know for sure if it is a 360 0r 390.