82 Ke70

If you're looking to rebuild a 4k, offer to take one off somebody's hands for no more than a case of piss and you'll probably have

a much fresher motor than the one you say is already in it.

Back to the main question that was asked: these are the options that seem to be the most common

1. Cheapest/easiest - 5k or 7k - 5k adds little more torque, revs a lot more but little less power. 7k big torquey beast of

a K motor, but doesn't like revving too much. Bolt on superchargers have been done! Cheap torque but not much

power and almost no thinking to do to put it in

2. Semi-expensive/fairly simply - 4age/4agze. Will be a killer 4-banger combo in the KE70, although really only worth it if you

work the motor which is easy as there are heaps of bolt-on bits for 4age motors. Better power and only a small

amount of troubleshooting to put one in.

3. Expensive/complex - SR20/CA18 - Little to lots more power than 4age but probably

a tad more expensive. Sweet ass 4-banger power but quite expensive and probably not very simple

4. Rotary! - Not much idea on the details.