no p8r head is 84 mm combustion camber with vtec size valves and cams are the same as p75 fyi. You'll only make more power cause of more airflow. Also it out flow better then a pnp p75 head and flows almost the same as a b16 head
no p8r head is 84 mm combustion camber with vtec size valves and cams are the same as p75 fyi. You'll only make more power cause of more airflow. Also it out flow better then a pnp p75 head and flows almost the same as a b16 head
b18c5/b17/b16 have just under 43 cc combustion chamber
b18c1 has just under 42cc combustion chamber
b18a1/b1/b20b/z have just under 46cc combustion chamber
all of this is an average of everything i have gathered and measured myself.
the difference between b20z and b20b are:
b20b has p3f pistons and p75 head
b20z has phk pistons and p8r head
the only difference is higher compression piston and bigger valves in the b20z.
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