The 292 was built for a friend's 50' 3100. I loved putting it together and will admit it was costly with all he wanted done, I would have just built a torque motor and been VERY happy. The 292 is a power house and built for HP, less top end and more mid to low end power would have been a better choice. The 327 is for my 59', the truck had already been converted to a V8 (not very well though). I had the engine and trans prior to buying the truck so it just came down to money. Had the 59' still had a six I would have kept it that way.