Like many others, I have a Chevy 250 head casting number 331184. My old head had a different casting number. Now my intake and exhaust manifold will not fit the new head(331184). Please tell me what my options are. It would help if I had the casting numbers to assist in finding the right parts(manifolds, intake and exhaust).
I need this vehicle for my daily driver. Is there anything else I will need to change? Thanks in advance for your help.

it's a 250 head(75-85) with a 72.76 cc chamber. the exhaust and intake off your old head will fit unless your old head was an integral head (intake cast as part of the head).