1986 5.0 with 85 shortblock
 

Hey guys, quick question;
I've got a 86 stang, with the original motor.
I also can get a 85 5.0 motor from a 85 mustang for cheap too. What I intend to do is rebuild the 1985 rotating assembly and then swap the 85 shortblock into the car, using the FI intake and heads from the 1986 motor.

Will this work or will there be problems with this setup or will it suck? Also, can I use the 85 heads and bolt the FI manifold up to them?

Thanks everyone

Re: 1986 5.0 with 85 shortblock
 

I'd use the 85 heads before using the 86 heads...the 86's are probably the worst flowing heads you can use..
Is the 85 engine from a stick car, or auto?


And check out www.foureyedpride.com :D

Re: 1986 5.0 with 85 shortblock
 

Thanks for the reply Dark Knight.

I am not sure if its from an auto or manual... But my car that its going into has a AOD

Re: 1986 5.0 with 85 shortblock
 

oh and thanks for the link I'll check it out! ^_^

Re: 1986 5.0 with 85 shortblock
 

Well, if the 85 engine is from an auto car, it has the flat tappet cam, the 85 stick cars have the roller cam.

Re: 1986 5.0 with 85 shortblock
 

Ah okay! Thanks for clearing that up... So, if its from a stick, and therefore a roller, on the aircleaner will it be labelled as a 5.0 HO? and the auto engine as a normal 5.0?

Re: 1986 5.0 with 85 shortblock
 

The air cleaner on the roller will say 5.0 liter 4V HO,
http://www.mustanggt.org/photo/85clark3.jpg
I think the auto cars say 5.0 liter EFI HO
http://www.mustanggt.org/photo/85eggleton4.jpg

Re: 1986 5.0 with 85 shortblock
 

oh thank you so much Dark Knight, you've saved me a bunch of trouble I can already tell. I'll be sure to go check what the aircleaner says once I have some spare time.

Re: 1986 5.0 with 85 shortblock
 

If you rebuild the 86 short block, make sure you get different pistons. The stock ones dont have enough valve relief to run much more than the stock cam.