motor replacement question

[fullborncowboy]

i got a 99 f350 and the block cracked from overheating, can i install a 95-97 powerstroke short block and use the heads from the 99 block. thanks any info would help!

[fullborncowboy]

anything?

[powerhoghp]

There were many changes from the OBS to the superduty 7.3's, I think the heads were one of them. So no, I don't think you can.

[donj1977]

yes you can just use all you uper intake and turbo and bloke off the hole was the fuel
pump was that its 3/4 freeze plug but not sure

[donj1977]

oh im not sure on everything

[fullborncowboy]

i was hoping on using my heads and all upper parts, i had my heads check out and surfaced and they are ok, just wondering if i could use older short block because it seems harder to find a 99-03 block

[dieseldan2005]

If i remember correctly Marty the mod on here used an obs block for his engine build and his truck is a 2001 or 02 with PMR rods. I think he kept the heads of his pmr block and put them on the obs block. I am not 100% sure, but check the 7.3 tech files section and look for his posts. He has some very helpful write ups.

[Marty]

Yes you can.

I took a 97 long block and put it in my 2001. I had to install a freeze plug in the valley and put all my 2001 stuff on it.

[fullborncowboy]

thanks, i was hoping to find somebody that has done it before. Thanks that helps me a lot!