I am planning to swap my 302 with a 302HO, i am going to use the original upper & lower intake,throttle body,oil pan etc.,so i can keep the original wire harness. Other than swapping the proper injector connectors,(because the firing order is different from the 302to the 302HO) does anyone know of anything else i would have to do to keep the original harness & computer? Thanks for any info.

 

Yea the Ho firing order is 13726548. If you are going thru all this trouble why keep the original intake and such? Why not put a cam in your motor. That will net you more HP than switching to the HO motor.

 

I cant afford the down time for the truck & it is my daily driver, I work at an auto repair shop & i can do the swap in about a day & the original motor is still running (just tired), it is a good canidate for a rebuild, then i can take the time to rebuild it with the parts i choose to use and not be in a rush to get the truck back on the road. Also i can take the time to make sure the rebuild is done right & not waste time or most importantly MONEY.

 

my truck has the 302ho but i didnt put it in the previous owner had it put in when a employee blew the motor

 

92 coustom, does your truck have the original tall intake plenium & dual throttle body?

 

My 92 f150 is a batch fire injectors. Meaning there are only 2 circuits for the injectors. It fires 1357 at the same time and 2468 at the same time. It is not like my Mustang which is sequential firing each in order it has a computer terminal for each injector. If yours is the same you should not have to switch injector plugs. If you can find a wiring diagram for your truck look how many injector terminals are going into the computer.

 

i also hav the 5.0 ho but mine came out of a 93 cobra

 

Bagged94f150

Did you swap the engine harness and computer with engine or did you adapt the engine to your harness and computer?

 

i put the harness and the comp in it

 

bagged94f150
I was wondering if you had problem with the transmission since you swithed computers?? or are you running manuel??? Thanks