That's kinda why I have to laugh when I read these "what can I do to make my 600 HP stock block engine last"? I don't care what kind of band-aids you install on your engine, whether its concrete or a girdle if you race on a weekly bracket type program its not is it, but when is it going to break. 600 plus HP stock block engines break. Sooner or later. I know are the guys that put 25-50 runs a year are going to chirp in here but I'm talking 600 plus HP engines that see 150 plus runs a year, 2-3 years.