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Reply to "Cam for 2V heads"

4V valves in 2V heads is a waste of time. A stock exhaust valve & 2.08" intake valve are big enough. Manley doesn't offer a stock size intake valve for 2V Clevelands, but they have a 2.08" Chevy valve that works, which is why I write a 2.08" intake valve is big enough.

Mill the heads to take the chambers down to 70cc and zero deck the block, that will take the motor to 10.0:1 compression. The heads normally need 0.040" milled off them unless you happen to have a set of 1970 heads, those only need 0.030" milled off them.

It would be hard for me to recommend a cam without a better picture in my head of how the car is being used (weekend warrior or daily driver?) and how you want the motor to perform. In general the three things that are different between 2V motors and 4V motors is (1) the valves are smaller, (2) the intake port average cross-section is smaller and (3) air flow through the intake port hits a brick wall at 0.550" valve lift even when its ported.

Have fun with it!

-G
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