Head Converson

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Junior Member
i am considering swapping the cylinder head on a 91 CRXsi (d16a6) with the cylinder head from a d16z6. i will need the cylinder head timing belt water pump ecu and intake manifold correct? has anyone done this swap? if so what gains did you get over the stock si motor? is it really worth it? would zc pistons fit into that engine after the conversion is done? this would raise compression right? would it raise it too high? thank you---david(sorry so many questions)