well not every one is going to do what i said but i build them in a way that they can take it and you get no warranty from me.i have seen to many things that some people will do to a engine or there kids or friends let them drive there car? i would like to see if there warranty holes to the acid test they say there give you one?? BUT i tell every one stock or HI that it will hold oil run and do the job and if some thing happens i look at it and see what i will do for them at that point ? have sold engine on e-bay no phone calls