WOW!!! my first post!!!
I have a 1994 f250 with a 460. I spun a rod bearing in it. I have a 1986 460 engine with only 10000 miles on it. I was looking for info on swapping the long block out. I am thinking if I cover the fuel pump hole and put the fuel injected heads on the 86 block it would work. Thanks for any help

1959ford

 

I don't think you can do this.

I think that the heads are different, in terms of bolt patterns.

But, if you ask around in the 460 forum, I bet someone knows.

Maybe just by bringing this to the front will get an answer for this newbie.

 

Yup, swap the EFI heads onto the carby engine, and you're good to go, might have to swap the timing cover to use the serpentine belt(not positive on that tho) but, that's about it.
And, an 86 has the fuel pump hole covered anyway... They use in-tank electric pumps(yes, with a carb.... LOL)
Evan

 

Your compression ratio will be a bit lower than originally. Hence you will have a bit less power and worse fuel economy.

 

Thanks for all the help. I am starting to think this will really work.
As for the lower compression....When I switch the heads I will do a valve job first, If I shaved the heads about .010 or maybe a little more do you think this would help the power and fuel mileage?
Thanks
1959ford

 

Thanks for all the help. I am starting to think this will really work.
As for the lower compression....When I switch the heads I will do a valve job first, If I shaved the heads about .010 or maybe a little more do you think this would help the power and fuel mileage?
Thanks
1959ford