Polytech AKS in 5.56

Question: Will a bolt from a Polytech AKS in 5.56 cal fit/work in a bolt carrier for a 7.62 AK? I'm building a Romanian kit, but want it to shoot 5.56. I have never seen a 5.56 kit, so I'll be using a 7.62 one. The barrel will have to be made anyway, so headspace can be adjusted then. Also, will a 5.56 bolt lock in a 7.62 trunion? 

Submitted by: Chris LeGeaux, 12/19/2009