I have an 87 F250 with a 351w carb with 220,000 miles. I am getting for free an 88 F250 with the same motor just fuel injection. The 88 is complete and I would be able to take everything off of it to put on my 87. My question is this, how complicated is this going to be to switch to EFI or should I just stab in my carb stuff and keep it carb set up? Any help greatly appreciated, I have seen the carb to efi threads but none as a direct swap from an 87 to 88 motor.

 

I just did a 86 to 89 351W swap. Its pretty easy. Just take all you intake ( upper and lower ) , wire harness, and dizzy off the EFI motor and put on the Carb one. The EFI in this Gen works off the dizzy so there is no cam or crank sensors to worry about. You might with to swap cams too. I bought a new one as I knew the old one in my 86 motor was a non EFI cam. Oh and cover / cap off your fuel pump boss.

SO basically its a top end swap. However If I'm missing some thing I'm sure someone will chime in with what I missed.