I am sorry for this again i posted this about a week ago and it came up missing during the server switchover. I never was able to see the answers to what I asked.

I have a 1956 - 235 motor that was completely frozen. it was in a 3100 pick up. The head, and motor had so much crud and sledge in it so I was not sure if the block was good. its fate now is resting in a machine shop of ho tanking and inspection. I bought a 1955 - 235 motor as a back up. The 56 motor head had a casting #3836848 and the 55 motor had a head casting number #3701887. Does anyone know which is the better head? The 56 head was completely rused and gunked up but the 55 head was very clean.

I will rebuild one and just want the better head to use.

again sorry if this is a repost I just can not find the original question. thanks again

"As I lay rubber down the street, I pray for traction I can keep, but if I spin and begin to slide, please dear God protect my sweet ride." -Amen

56 Chevy 3100