I bought a rebuilt engine from a fella. He said it was a 302 out of an '82 F250. After talking to a few others, they stated there was not a 302 offered for that model and to be careful it is not a 255. I wasn't even aware there was such a thing as a 255. Anyways it is rebuilt, but I really need to know what it is. I was able to scratch the paint off the valve covers to reveal the numbers. Can anyone decipher this and let me know what I have? I have searched the web, but couldn't find too much concerning the 255. If it is indeed a 255, what can be interchanged with the 302 and 289. I wanted to put an edelbrock carb and intake on it and ordered them, but that is before I realized it may not be as advertised. The edelbrock site said the part I ordered will not fit a 255. I would appreciate any help you could provide.

Thanks,

Mike

 

A 255? Never heard of such a thing so I will chime in to see what others have to say.

What is the measurement width of the intake manifold from valve cover to valve cover?

 

The block numbers should be stamped above the starter on the block. Those are'nt the right numbers.

There was a 255 made around the early 80's.

 

Thanks for your help. I'll check and post the block numbers when I get home tonight.

Thanks again,

Mike

 

Additional info:

On the block I was able to make out these numbers 3E27 by itself and D3C with ZOAE near it. The ZOAE is truly a guess because it was pretty much obliterated.

Also the transmission has 17 bolts which leads me to believe it is a C6. I am hoping they wouldn't marry up a C6 with a 255.

The intake has the 289/302 bolt pattern. From what I have read on the internet the 255 has a different porting system. I am going to pull the intake and place the an edelbrock with some clay between some wax paper to see if they marry up.

If anyone can help. I would appreciate it.

Thanks once again,

Mike

 

the 255 is a 4.2 liter engine that was used in mustangs for 1980 and 1981. it was the top engine available those years.