Hi, I have casting 501 on the front right hand side of the engine block. Truck is 69 f250, engine head has casting number C6AEU, its a FE, holley 4v 4160, any guess what engine is that. thanks,

 

Hi,

The only was to tell is to either tear the engine down or measure the stroke. Do a search and you will find some posts instructing you on how to do this.

Take care,
Lee

 

check ur vin number

 

If you look closely is a reverse "105" used mostly on the 361/391 FT series. The heads are 68 390 heads Mercury 4V or high compression 2V with 67.1-70.1 chamber volume. I think the "105" blocks were cast at MCC (michigan casting center) vs the DIF (dearborn iron foundry). As wisely instructed check the bore and stroke of the engine. The 361/391 both have a bore of 4.05 std 390 and the crank strokes are 361 at a 3.50 stroke and the 391 a 3.79 both used a forged steel crank unlike the std FE nodular iron. G.

 

My 390 was a MCC reverse 105 block. Had a 2U cast crank and was not a 391.
Paul G.

 

I've got a 360 in my truck now that uses the mirror 105 block. It originally came off a '75 F100.

 

I thought that the mirror 105 number indicated that it was a heavy duty 361/391 truck block. Look to see if the sides of the block have vertical ribs running down them. I hoping you got lucky and have a 391 truck block. They can be bored to a 428's 4.13 bore and probably bigger.

 

Well I said mostly not all LOL, G.

 

Oh BTW from what I understand as the FE was being replaced by the 429/460 series MCC was using the same castings for all FE blocks except the 428 and 427 which stayed at DIF until they closed. The "105" blocks were cast and then machined for the application needed be it a FT series or a 360 or 390. Generic yes but cost effective. This might be where the confusion is between the different blocks. Hope this clears things up a bit. G.

 

Sucks for the little guy though (us, ha ha) that is try to find the heavy duty 361/391 block to get to 406 or 428.... Oh well Isn't it about beer :30?

 

I checked the block behind the alternator for cadting numbers, I found D8TE.
any idea what this mean, also where can I find the engine serial number. thanks,

 

Well D= decade (70's) 8=78 if I'm not mistaken but that seems kind of odd to me being's how ford quit using the FE series after 76. Have to get someone more knowledgeable than I.

 

Heh. They quit making the FE in '76, but the FT continued until '78, if not a little later. Service block casting may have continued after that. So it's entirely possible that's an FT block, or a service FE block. An FE service block would be my guess.

 

I just scrapped a 78 F600 that had a 330FE/FT (this motor had a cast 360 crank and std 360 rods in it) under the hood. I think the FE/FT stayed in the heavy trucks till the change in body style occured in 1980. That's when the 370 appeared, I believe.