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pwtmxracing
01-13-2008, 08:01 PM
i friend of mine found me a lincoln mark 7 5.0 h.o. what is the difference between that motor and the one in my 1990

Viper_ed
01-13-2008, 11:40 PM
I know that the pistons were different in the Mark 7's.

HOTMARK7
01-14-2008, 06:46 PM
Depends on what year. My 88 had the same engine as a GT, even the factory TRW forged pistons, same headers ,cam,and intake.

FineLineMtrSprt
01-27-2008, 11:30 PM
Better make sure its a H.O. engine...some where and some werent. its ts not then its only 175hp with different firing order,cam,pistons and more.

HOTMARK7
01-28-2008, 06:04 PM
All mark 7 motors after 86 or 87 were H O motors , stay away from 84 and 85, they are the non H O motors

sweeney1030
01-28-2008, 07:09 PM
90-92 have forged crank and pistons, all lsc's are H.O. all of they 87-91's Ive owned had different pullies- larger crank and small alt for all the elec. junk on the cars.

pwtmxracing
01-28-2008, 09:27 PM
i think its a 90 h.o. so is that the same as in my 90 gt :pinkthumb:

lib88stang
01-28-2008, 09:42 PM
i think its a 90 h.o. so is that the same as in my 90 gt :pinkthumb:

It would be the same, except probably not as abused as one in a mustang.

pwtmxracing
01-29-2008, 12:46 PM
It would be the same, except probably not as abused as one in a mustang.
yeah aint that the truth lol:goodidea:

95gts
12-02-2008, 08:49 PM
How could I find out what year mark VII motor I have. I junked the car and forget what year it was.

Rodeheaver's
12-03-2008, 02:59 PM
How could I find out what year mark VII motor I have. I junked the car and forget what year it was.
the blocks have a year marked on them bear the motor mount pad, also you can look under the head near the pushrod tubes, you need a mirror to see it with the heads bolted on..

95gts
12-03-2008, 09:18 PM
Thanks Tim.

PaxtonShelby
12-03-2008, 11:58 PM
90-92 have forged crank and pistons, all lsc's are H.O. all of they 87-91's Ive owned had different pullies- larger crank and small alt for all the elec. junk on the cars.

Were the cranks forged? I didn't think any factory 5.0 motors had forged cranks.