So my Briggs engine 31G777-0303-G1 just cracked. Not really sure why. Does anyone know approximately how much it will cost to be replaced? What other engine options are available, Kawasaki, Honda? This sucks to have a blown engine on a 5yr old mower that has been regularly maintained. I'll call my dealer tomorrow to see what they can do. Would it be worth it to have them repair it or is this something that can be done by someone with pretty decent mechanical abilities?