I agree, the crate motor warranty is worthless. The failure will ALWAYS be your fault. improper lubrication, cooling, etc. No way to prove it outside a court trial with an expert witness and a motorhead judge. Biuld it with your son, good times. With the money you saved , get yourself an EFI setup for mileage and driveability. Most of the cost is machining and if your crank and bores are within spec, your bucks ahead.