Originally Posted by
thundermax
Thanks, great info. The heads and block have E6SE numbers stamped on them.I did some research and found that it is 1986 model year and that those heads really suck along with true flat top pistons that went with them. Also from reading articles, I can't run any type of cam either. I have the option of getting a mark VII complete 5.0 engine for $400, should I do that instead of messing with this miss-matched engine? Also the my car has AOD and the ECM is for manual car, is that a big problem?
That motor is more than likely from a 86 Truck or Full size car.
The flat top pistons will indeed limit cam choice.
I honestly dont know if the A9L will be a problem or not with the AOD. Try it and if you have any issues it should not be difficult to trade the A9L for an A3M.
I dont want to suggest any used motor over another. Though the Mark7 was to my knowledge identical with the exception of a lower profile intake to what was in the 5.0 Mustang. Its doubtful that you would see much performance with the Mark7 motor over what you have now even if you swap to a better cam. The E7TE heads will be marginally better than the E6SE heads. Personally I would contact Scarface or Harold here in Ford Tech and see if they can score an Explorer V8 for you. With an E-303 or F-303 cam they will provide a nice seat of the pants boost in performance over what you have now and should not cost much more than $400 - $500 to get in your car. I built one for my son's 90 LX hatch and was very impressed with the results.
Hurst