94 5.0 Computer

Discussion in '1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-' started by bast36, Nov 20, 2013.

  1. so my v6 is slowly dyeing in my first mustang and I want to swap to a 5.o from a 94 f150 that im going to rebuild. so I was wondering with the 5.o computer from the mustang will work on the 150's 5.0 I know looking for motors they have said different things with vin such as the mustangs v8 is a vin r and the 150's is a vin n will it mader? just looking to clear up my last big question
     
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  3. The firing order may be different with the truck engine.

    This doesn’t prove that the block is a HO block. Some trucks evidently use a HO firing order with a low lift cam (this will result in less than the desired HP output). However, it will definitely prove that a block can’t be HO because the firing order is wrong.

    Remove the #1 & #3 spark plugs. Put your finger in #1 spark plug hole. Crank the engine over until you feel compression on #1 cylinder. Slowly turn the engine until the TDC mark and the timing pointer line up. Mark TDC on the balancer with chalk or paint. Put your finger in #3 spark plug hole and crank the engine 90 degrees. You should feel pressure trying to blow past your finger. If you do not feel pressure, repeat the process again. If you feel pressure, it is a HO engine.

    No pressure the second time, remove spark plug #5. Put your finger in #1 spark plug hole. Crank the engine over until you feel compression on #1 cylinder. Put your finger in #5 spark plug hole and crank the engine 90 degrees. If you feel pressure now, the engine is not a HO model, no matter what it says on the engine.

    Using a small carpenter or machinist square to mark the harmonic balancer off into 90 degree sections may be helpful here.

    A 15/16 deep socket & breaker bar or ratchet may be used to turn the engine.

    The HO firing order is 1-3-7-2-6-5-4-8.
    Non HO firing order is 1-5-4-2-6-3-7-8
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