I've never had oil pressure issues with this engine (except when cornering hard at speed, but that's because I need to baffle the sump if I'm going to drive it like a racecar). I'm actually not sure how many miles the engine has; the chassis has ~210k miles but the engine was swapped at some point, so all I know is that the engine has more than 30k miles on it. I am very tempted! Now that I have a second supercharged MR2 that most likely needs an engine rebuild, I will save my modding for that car first. This one might eventually get a 20 valve 4age or something else down the road, but that'll be after I graduate. Toyota makes a couple of other engines that are worth swapping in, or I hear that doing an H or F series Honda swap isn't that bad either.