Where do you find aftermarket engines?

You can find these things all over the internet by googling or using Yahoo shopping. I bought two toyota turbos that way along with a long diesel block for a tractor.

This is one example.http://www.japanracingengines.com/ There are many forums on hotrodding japanese engines and cars along with hard copy magazines you can buy at places like Barnes and Noble or other big book stores or stores with large magazine selections. They will have a list of advertiser.

But here's what you need to know. You are going to pay a fairly stiff price for that aftermarket engine, especially if you're looking for something that's going to be turbo. First they have to rebuild the engine, etc. etc. and do the heads for higher horsepower. The camshaft(s) have to be replaced and they will typically replace everthing in the valve train.

Typically when you look at a Japanese engine, because most of them are fairly small in displacement, you want to make sure that that it breathes really well. That's because in a sense, it's just a big air pump. So you do work on the heads so it gets more air -- and improves the valve train so that it will rev higher. If you change the rev curve, you also need to cam for that -- and don't forget, you'll have to replace or at a minimum reprogram/reflash your engine control module.

Put enough pressure into these things, you need a bottom end, crankshaft etc., that will take it and you may need to work on the oiling system. Sometimes the bolting system will need modification. Will you need one or two turbos. Assuming you have injection, you may need to have it modified along with an aftermarket manifold. Headers?

Reaching 300HP on the larger engines such as those from Mitsu isn't all that hard. Getting to 500 hp is considerable more difficult. But you could get to a thousand if you're willing to make the mods to keep the engine together. It should be obvious that we're talking about skilled mechanics engine builders.

If you were looking for a Ford or GM engine, no problem, they have web sites for racing or performance parts and they sell aftermarket engines that are built by factory mechanics -- and some of those engines are specificially designed for sealed engine racing, i.e., you buy it, put it in and you run it the way it was built other than external mods.

You can buy complete engines for anywhere from about $6,000 to more than $20,000 and some of them come with injections systems, others with bare intakes for carbs, etc. The factory lists the expected horsepower - and some of these are really hot beasts.

Mitsu probably doesn't do that but someone else builds them and sells them. You want to be sure that the place has a good reputation.

FWIW, these prices may be out of your ballpark. Getting more horsepower out of your engine compartment is rarely cheap. If you've got the bucks, you can have a good time.

Mitts make nice cars to hot rod and depending on which car you've got, there are some engines that will fit nicely without major mods with great horsepower. There is some Chrysler interchangeability. Be careful there. But it's possible that you can find a Mitsubishi designed engine from a Chrysler that will fit and give you something to put your boot into.

But read carefully. Sometimes similar designs are made slightly differently. I'm reasonably sure Chrysler has a racing site on line. I know that Ford and GM do -- and they also sell performance parts. Want a Cosworth Zetec?Ford will sell it to you.

One of the Ford performance partners put a very hot modified Mustang 600 hp engine into a Ford Focus, changing it from front wheel drive to rear -- and for a time, they were selling complete kits to do this with for about $20,000. Very quick and looked close enough to stock, you'd fool most people.

Your peers are idiots. There is technically no such factor as an o.e.m engine. Even crate engines, purchased from different organizations, nonetheless begin off with blocks that began on the long-established GM manufacturing facility, and so forth. Nevermind that a Cavalier is likely one of the final automobiles that might ever obtain an engine like that besides. My notion, do not concentrate for your peers. Pretty a lot ever.

For as much as you would pay for a rebuilt, aftermarket engine, you could've just bought most, if not all, of the parts and either you or a professional can install them. This could save you a few hundred to a thousand or so.