So, I'm having so many problems with my Chevy 350 that someone said it would probably be a better idea to get a whole new engine. And since I like Speed and Power, I want to find a powerful engine that can still fit in my truck. The truck is a 1961 Chevrolet Apache 10. Do you know if it will fit, and do you know if it will fit the transmission that is currently in the truck? If that engine doesn't work, what is the biggest thing that will?