I read through the numerous questions / input regarding the blown head gasket problem with the 1FZ-FE I6 engine, however I did not see any information regarding the number of engines that experienced this that required a major rebuild? The reason I ask is that I am one of the unfortunate 1997 LC owners who's head gasket blew at about 157K miles while returning from Sedona, AZ on I 17 last year. I found a junk yard motor in New Mexico for $1,500 and had my buddy install it, (it was out of a 1997 Lexus LX450) and had only 30K miles. I have my motor sitting in my garage on an engine stand and am wondering if it is now a "boat anchor", or a really heavy paper weight?? I'll be popping the head off probably next week to determine the extent of the damage, I hope it was just the gasket that went. It was still running when I shut it down, but it sounding pretty sick, and was billowing white smoke from the rear of the head.