My experience with share by this quote from Thirdgen:
I just want to second the opinion of junk blueprint engines. Had valve train geometry issues from day one, blow by, rediculous oil consumption( 5 qts between 2500 mile oil changes, or 1 quart every 15 passes at the strip). Always had funny bottom end noise and oil leaks everywhere. Thankfully it grenaded one month before warranty ended and they honored warranty. Got it back and sold it on cl before it ever came out of the crate and went LS with the money ( plus some). Customer service was good and very polite, just do not trust their products in the least.