well, i haven't taken it apart yet, but, its overheating and blowin all the coolant out of the radiator.. no water in oil, none come out the tailpipe. runs smooth but is pretty gutless..

(grandma in a geo could outrun me light to light)
i just figure if i get this thing apart and have to replace a head, i'm gonna do it right the first time.
if it does have a cracked head, i was thinkin on puttin a different head on it for more power, but if that can't be done then.. i want to pull the hole pile out and replace it with something...
what will "bolt in" with little modification in this car? and would it bolt to this tranny or should i just swap it out too? or should i just fix this stock engine and deal with geo's passin me up?
i've been looking everywhere for ideas, but am not coming up with much on what i can do with it..