My timing belt snapped and now I lost compression in 1 and 3 is it worth rebuilding the head or should I just get a new one?

 

You won't know until you pull the head. Probably cheaper to source a new/used head though.

 

Well how many miles are on the head? Mine had 260,000 on it but i had the head rebuilt at my friends machine shop. Replaced all of the valve guides and seals, re surfaced the head valve job, the whole nine. With all the gaskets and head work and parts (four exhaust valves) cost me 500.00 to get err running again.