Nice to see not everyone trusts the importer that says "Under 40.000 miles on this motor." I hope you're checking and double checking the clearances...if not, they will come back to bite you in the ass, the aftermarket places don't always get within the tolerances. I've built plenty of motors in my apartment bedroom...now i got a house, and soon a shop...no need for worry, goodluck. I'd like to see what turbo you're going to choose for that application later.