Brad the head with the last three numbers 848 is the best head as far as ratings that matter. If it were me, I would get the engine shop to find it if they are willing. They would guarantee the head. It may cost more, but sadly, these heads have about a 50% bad due to cracks rate. It might be higher, but I don't recommend trying to find one yourself unless you are feeling lucky. I have 6 235's sitting around and when I get to them, I expect less than 3 to have working heads. Maybe someone here will know of a good one and hook you up? 54-62
