I have a 1985 4x4 pickup with a spun rod bearing. The engine has 177k mi and I'm debating if it is worth the time/$$ to take it all apart, machine crank, bearings... OR I found a 1984 22RE (must be from a 2wd) rebuilt 10k mi ago for $500. I would swap over my fuel pump, distributor & intake etc. and remove those parts from the 22RE & sell them.
(the 84 22RE does have the newer style head with single row chain and pear shaped ports, so everything should bolt right up from my 85.)
From what I have gathered, the only difference between the 22R and 22RE heads of these years is that the cam.
the carbed cam is supposed to produce slightly more vacuum to draw the A/F mix through the intake manifold into the cylinder. the extra vacuum isn't required on the EFI models since the injector sits right at the intake port on the head.
Now I'm wondering if I take the 22RE block/head and replace fuel injection intake with carb intake, will there be a lack of vacuum and the engine may run poor?
Are there any other obstacles that might prevent this swap from working?