Port & valve sizes for 3.3l 930?

[81 930]

I've been trying to figure out what the standard port and valve sizes are for a 3.3 liter 930 engine and I haven't had any luck searching on the internet. Can anyone help? I'd also like to know the port sizes for a stock 3.2 liter Carrera intake manifold.

The reason I ask is I've come across a set of ported heads that I'm thinking of using in conjunction with a 3.2 liter intake. Uh oh, my quest for serious horsepower has begun!

Thanks,

Brian

[Paul Thomas]

930 3.3
Intake port :32
Exhaust: 34
intake valve: 49
exhaust: 41.5

Carrera valves were the same, ports were I-40, E-38
Paul

[81 930]

Thanks for the help Paul.