Not sure on the others, but avoid Jasper or ATK. My Jasper 22RE has burned well over 1 qt of 20W-50 every 1000 miles since I got it.
It's at about 15k miles now (well past any break-in period) and still doing it. Junk.

I'll second staying away from Jasper, their warranty sux (especially for what their engines cost) and in my experience they are a PITA to deal with.

My Jasper 22re was ok for about 5k and then started leaking oil like crazy from the junction between the head and timing cover. I had to fight them to pay labor charges for the repair at their "preferred" shop (couldn't do it myself without voiding the warranty) and it took a month once was all said and done. It is now out of warranty and has about 20k on it and is burning 1qt of oil every 800mi or so <img src="/forums/images/graemlins/angry.gif" alt="" /> I called Jasper and their suggestion was to run high-mileage 20w-50 in it and that should "fix" the problem...

I'm planning to ditch the POS as soon as I get my Supra put together and will be rebuilding my extra 7mgte and dropping it in, hopefully in the next year or so.

I am going to ditch mine too. I am going to do what I should have done in the first place and go straight factory on the head and block. Toyota doesnt sell replacement long block 22REs but they sell the finished block and head parts separately. It just strengthens my philosophy that straight Toyota OEM is the only way to do it right. Expensive, but you get what you pay for. I need to do it before Toyota stops selling them. Last of the great japanese straight 4s.

1989 reg cab pickup, 22re, 31s, 4.56s, rear ARB, rear OME springs, RS9000s, otherwise stock.