Needing head help

[Dougsfirebird]

Hey guy and gals.I'm new here and I need some help. I have a 1994 firebird witha 3.4 liter engine. I have been reading and was wanting some info.on the aluminum cylinder head swaps. i have found 2.8 and 3.1 canted valves and d-shaped combustion chamber which promote swirl in the cylinders. So my question is which year heads can i use and will it work with my stock intake manifold. I'm really want to use these type of heads if possible. i have went to the gm dealer and they cant help me. i have caseing numbers for different type and i have part numbers as well. so if anyone out ther can help plzzz do.
thanks your friend Doug.

[geoffinbc]

They will bolt to the engine but not too the intake. You have to do an entire top end swap. Check the engine swap section and the pushrod performance section