the mustang long block and the truck block are the same. The only difference is the mustang will have roller lifters and a different cam. Whatever you paid for the mustang blocks, think of the amount of parts you could have bought instead
The heads on the mustang 5.0L HO are even D7 heads, wich are truck heads designed for torque, the mustang cam utilizes that torque by bumping it up into a higher rpm range for car purposes. Yes the trucks have solid lifters because they arent meant to rev high on a daily basis like the mustang engine. Yes the intakes are different because its a mustang not a f150, the plenum&runners need to be designed to the meet the demand put on the engine. Yes you wasted money, you could have done that conversion by simply buying a mustang wiring harness, intake, roller lifters and camshaft.

 

IT WAS A MOTOR I HAD IN THE CORNER!!! THE STOCK 94 MOTOR HAD ROLLER LIFERS.. SOO I DIDN'T WASTE MY MONEY AND THE HEADS ARE E7'S ON A MUSTANG MOTOR (WITCH SUCK ALSO)...AND THE CAMS ARE NOT THAT DIFFERENT....I COULD BREAK DOWN ALL THE NUMBERS FOR YOU.........NOOO SORRY!!!!

 

at least you didnt buy it then. You are right they are E7s, all fox body mustangs with the HO engine simply only had truck heads. Be careful with mixing cams with intakes on EFI engines, intakes are designed in co-ordinance with the longblocks power output. This is why the mustang 5.0L had more power then the truck's engine. There is alot more depth i could get into about runner length and plenum size, runner length is determined by where the power needs to be and how high the engine has to rev (shorter runners higher revving) and plenum size is determined by rpm and runner size in cfm, the runners will flow a certain cfm and hold a certain cc volume, the plenum needs to be just under 50% of combined runner cc's

 

The truck motors after 93 had roller lifters.

 

1992 had rollers also. I have one.

 

My 92 also had roller lifters. I have heard that a few late 91's also got roller lifters. Something do do with ford using up all the flat tappet cams too early and they just starting using the rollers. I dont know if there is any truth to this it's just what I heard.

 

My fathers (now mine) Bronco had a service replacement engine installed by Ford and I remember them saying that they had to find a 91 engine because the 92's where different. So I guess the 92's got the rollers...

 

i know for sure 1990 was flat tappet

 

hello im a newer user to this site and i was wanting to put more power to my 93 f150 5.0. would it be easier to swap out the motor completely with a mustang 5.0 or build a 5.0 long block with parts from my f150 and mustang combined?

 

Yeah that is fairly obvious because you dug up a thread from 2003 to post your question in. It's good that you are reading old threads because there is lots of great info in them that still applies but you should create your own thread from scratch and give it a title that reflects your question. Just go to the top of this section and you will see a button for creating a new thread.

 

getting ready to pull the tired old 5.0 out of my 85 it the first gen EFI
i have a good 1995 5.0 out of a f150 .
it is a roller block and ran great when pulled. used the heads on another project a while back.
any recommendations on what to do to this thing before i throw it back in?
i have a stock heads i just bought that have been gone through tanked beaded new valves and springs the whole shot.
Should I stick with these?
should I throw a E303 cam in it ?
how about a MSD distributor? Do you really get anything extra for the $400 price tag of the MSD distributor ?
I also have a set of mustang stock headers I was throwing at it are they too small? Should I go with aftermarket headers?
trying to do this on a budget cheap as possible but properly
I know for sure the rotating assembly is excellent shape.
and plan on doing full set of new fel pro gaskets and new melling oil pump
with a Cloyes double roller timing chain.

 

Just add 1.7 roller rockers, the stock cam is much better than the early cams and the late model heads produce more compression than the early smog heads so this motor will be a nice upgrade from the '85 just as it is.

What vintage stock heads.. 1985 or 1995?
No.. it's not a truck friendly cam.
No.. complete waste of money.

Yes go aftermarket, those stock headers flow no better than manifolds and put the collectors in the wrong place and at the wrong angle for a truck.

Good, just do not use a high volume pump there is no need.

 

I love these old as dirt threads that get brought back to the top with all their good awesome vintage info in them. Good to see people still read them

 

 

And the zombie thread loves again. Jeff what year is your truck and what year is the donor motor?