Thanks guys, sorry to post back so late but Ive had my head in the truck nonstp for a few days. Brian, I know Jerry, he was very kewl to work with when you needed a part. Very knowledgeable. I will look ya up. The original drive train is going to be sold. its gonna need rebuilding for sure. I think the 401 with the dogleg heads is much stouter and quiker than the 390 but thats my opinion. lol. I know that everyone and his brother wants to find one. They are getting hard to ind . They come with forged crank and rods! I will post a pic as soon as I can. Happy wrenchin guys! Oh thanks for the 400 tip too.