Originally Posted by
tabetha
That sort of power is childs play, the main difference between 2wd and 4wd heads is in the cooling passages, and the passageways from head to block in the head.
for the power you want a T34.48 will be perfect and punchy low down, keep std cams/head/CR.
tabetha
The 4wd head has smaller combustion chambers so ensure you use the correct pistons for the head you choose.