Water out exhaust is normal due to changes in temp etc..
Oil changes and quaility filter, some cheap filters let the oil return to sump taking longer to pressurise again..
My theory in some cases esp in Jap cars. I find it easier to install a latter model motor with the same family-block. As in an A/U motor in a E/B can use E/B inlet. That way there is no hassle with "running in" etc. The A/U has better bottom end with stud girdle.. [I think]Lower Klmrs too!!!
On the other hand I'v seen plenty of good motors over hauled just because it done a certain amount of k's which is wrong, usually only requiring good valve gear overhaul esp on V8's pre roller cam/ efi...
Don't be afraid to try something new. Remember, amateurs built the Ark...Professionals built the Titanic!
Tuned & maintained by "Peppertree Perfmormance". Dart block, Scat 4340 steel crank, Custom C.P pistons.Oliver rods.. Mal Wood twin plate clutch.. Twin SC61/2's,482 rwkw/ 645 rwhp..
Passengers, myocardial infarction material..