I'm rebuilding a set of old ( 95 casting ) rectangular Merline heads and want to measure the intake ports to match cam , headers etc. World can't tell me which heads they are because they keep telling me there is more to the casting # than is on my heads.They currently make intake runners of 320 CC and 345CC. Anyway what is the proceedure for measuring the intake runners? Do you simply fill them up w/ the valves closed and read the C.C.'s?? The combustion chambers are 118C.C.. Thanks

Originally posted by TWC:
Do you simply fill them up w/ the valves closed and read the C.C.'s?? You got it graemlins/thumbsup.gif smile.gif