A few years back in the good old days of the internet, probably way before most of you kiddies ever knew what an S12 was there was some pics on Datmans site of some CA18ET's that have thrown rods. It was said at the time this was a major weakness of the engine.
I can't really comment much on standard engines as other than my first S12 which I had for 6 months I've only ever ran DET rods in the ET.
But the thing is, I haven't heard of anyone chucking a rod for many years
I can only think that the engines that threw them were mk1's without the 6.5k limiter, or maybe the lighter Scimitars made it easier to over rev them.
Anyone been unlucky then?