Introduction

Before you begin this you will want to figure out how much of a rebuild you are wanting to do. A general rebuild is bearings ( main. rod, and thrust ), pistons, rings, seals, gaskets, and freeze plugs. The rebuild kit I bought contained pistons, rings, bearings, all the gaskets, all the seals, front and rear main seals, and freeze plugs. If you are wanting to replace more than just those parts go check out partsdinosaur.com  the prices are very fair and the parts are from the original parts suppliers for Mitsubishi when these cars were originally built. If you are looking for performance parts you can go to 3sx.com, dsmgraveyard.com, and parts.com. These sites have a lot of selection but the prices can be a little higher. Advance Auto and Autozone have most of what you will need to do a rebuild and most of their prices are cheaper then most internet sites.  Next you will want to make sure you have all the tools you will need for a project like this, here is the list.

1/2 inch Breaker Bar, 1/2 inch Torque Wrench, 1/2 inch drive ratchet, ball joint separator, tie rod separator,a good set of 1/2 inch drive deep well sockets (8mm-19mm), a good set of metric wrenches  (8mm-19mm),
a 3 ton hydraulic press  ( Harbor Freight Tools $79.99), an engine stand        ( the 750lbs one from Harbor Freight will be sufficient $39.99), an engine hoist       ( local equipment rental stores usually have them, average price $40/day), 6" socket extension, valve spring compressor, piston ring compressor, valve lapping tool, lapping compound, magnet, storage bags    (sandwich bags work), labels, sharpie,  rubber mallet, hammer, wd-40 or Liquid Wrench, possibly a nut splitter, a good set of bolt extractors   (just in case you have any rounded off bolts), vise grips, piston ring wrench, paper clips, an end yoke holder (if you can't find one or do not wanna pay $60 for one you can take a 2x4 and put 2 bolts in the end about 2 1/2 inches apart), cylinder hone, high speed drill, feeler gauge, flat head and Phillips head screwdrivers.

This should be it for the tools you will need. You will need a service manual you can download them for free from 3sx.com (click on tech, they will be in there)....pick the one that says "Mitsubishi Engines Various" or you can do what I did and download them all.