[mirage83]

Hey Kev, you'll want to REALLY keep an eye and an ear out for evil noises from the bottom of your engine. Depending on how long you drove it with water and anti-freeze getting into the oil you could have some real damage to the bearing surfaces down there, crank and/or rods. If you're not interested in dropping the oil pan and checking your bearings you at least need to make SURE you run good clean oil in that engine, with one extra quart thrown in for good measure (won't hurt your engine at all, consider it insurance).

Change the oil before you crank the engine after your repairs with a good 30w HD oil and filter. Play around in the dumped oil and see if you find any discernable metal shaving or (worse) chunks in it. Pull your EFI fuse and turn the engine over until you get good oil pressure. Then put the fuse back in and crank her up. Run her only a day or so (and NOT hard driving, don't push the engine yet) then change the oil and filter again to make sure you've got all the garbage out of the block. Change the oil again after a couple of weeks, again keeping an eye out for visible metal shavings in the oil. Might not change anything in the end, but that'll help reduce the chance of RK showing up right after the HG replacement.

Also, if the engine overheated at all you'll want to have the head checked to be sure it isn't warped and have it shaved if it is. Otherwise your new HG will be a complete waste of time, money, and effort as it will blow in no time flat.