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This thread has been very valuable, thanks to all who have contributed. I signed up just to get involved.
I'm currently building a motor for a circuit/time attack style car and tossing up between VE head options.
Absolute max power would be 400rwkw (going for PB's/Wins/laps with mates etc) but for longevity I will happily run it at 300-350, know it can do it very easily and not have to worry about head reliability at revs.
I'm having a hard time choosing a head, both are available to me and I can afford either but I do like to get good bang for buck from mods and am not the type to go absolute best at all times for no good reason.
The P11 head comes out a bit cheaper even after coilpack conversion, CAS and solenoid swaps etc, but the things I'm having a hard time deciding are which cams are best suited to this goal and if the smaller valve stems are an issue in the p12 head as I hadn't planned on changing anything in either head beyond springs and a mild clean up port.
I will use a TS manifold and Ext gate whichi should help in response and top end flow respectively.
Thoughts?
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