S.G. Welcome to the bolt.
Many of the guys on this website are originalist and rebuild their bolts to perfection. There are a few of us here that don't hot rod but enjoy the challenge of up grading our rides. While most have told you to do whatever your heart desires they also tell you to keep the six. If you want to upgrade to a 350, go for it. It sounds like you have some strong backs if weak minds close by just in case you need someone to lift a rear-end or tranny. Hold on to those parts, someone will need them some day.
