Old style block in a 91 5.0

SickFox

New Member
Jul 9, 2006
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I have a rebuilt 306 shortblock,that I believe is a late 70's block.I just wanted to know if it is compatible with the 91 5.0 fuel injection,does it have all the sensors?Thanks
 
SickFox said:
I have a rebuilt 306 shortblock,that I believe is a late 70's block.I just wanted to know if it is compatible with the 91 5.0 fuel injection,does it have all the sensors?Thanks

Are you referring the the wiring harness? I have a 70's block and it worked fine for me. Seems I need more information to answer this question.
 
The block will work fine. The only major difference is that it is not a roller cam block and you will have to retrofit it for the roller lifters if you plan on using a roller cam. If you plan on using a flat tappet cam then you won't have to do anything with it.

There are really no sensors that go into the block itself so you should be good to go there. The sensors are mostly in the intake manifold, oil pan and such. The oil pressure sensor might be the only sensor that is in the block but it has been the same on 302s for years so your good there too.