Can i put a 93cpi engine in place of my 91tbi engine if i swap the intake manifolds so the electronicsare the same or is it way more complicated or are the heads/block completely different?

 

its waaaaaaaaaay more compilcated than just that. the cpi requres an upgraded ECU, and with the upgraded ECU , you'll have to rewire basically everything in the truck, becuse i'm sure that the wires aren' t the same. so if you decide to do it. good luck!

 

if you decide to swap, a good place to get your wiring is Painless Performance

 

ok well the guy at the machine shop said he can change heads to make it work with my TBI unit and factor ECM with wiring. So for 700 dollars i hope so.