Originally posted by warmonger:
The 3L chambers are just a little bigger around the valves (unshrouded) and that gives them the proper compression ratio.
Same benefits of the 3.0 heads, but with waterpump and cams all stock.
ummm... No.
2.5L valves are shrouded; 3L are not. big difference. Not enough meat to unshroud 2.5
Valve sizes! big difference. And if you bring up putting larger valves in the 2.5 the shrouding will be worse and the cost rises tremendously.
Another bonus
IS dumping the stock waterpump pulley!
