Ok I'm thinking about buying another truck. Its an 88 1500 short bed, think i can get it REALLY cheap. If I do I will either fix it up and sell it or fix it up and rock it around town with SAS swap and some 38s.(I miss driving something that turns heads) Anyway if I keep it I would want to rebuild the motor and probably go 383. I can get a 383 1 piece rear main crank on Ebay for like $150 so I figure why not. I know I would need a chip(though who knows maybe the K5 wants some TBI and the short bed wants a nice carb. What do I need to run a 383? I've always heard 400 balancer and such but what the heck is this? I've never been clear on this stuff.