59 holiday sedan, which engine fits??

[pthomas]

hi, I am looking for a new engine for my 1959 98 holiday sedan vehicle, 394 cui, vin 599C06608, hydromatic
Does anybody know which engine (chevi) will fit best??

My engine gets emediatley hot (I think after the long cold winter there is a crack in my cylinder head), new cylinder heads I can´t find at least :-(

are new cylinder heads available??

Thanks
Thomas