stroker vs bbk

[motoxchamp]

I have a duncan 05 head with plus 1 valves. I want to at least get a 470 BBK but Im also considering a stroker crank or doing both. This bike will be raced at the A level in worcs open and some itp quadcoss open. I want a quad that pulls from bottom to top with little hit. Is a BBK more reliable than the stroker? What should I do? What is the difference in performance?

[drgnerth]

Both are pretty reliable. The stroker will rev faster but both will make good power. BBK is easier to install.

[jacobw]

the stroker will not rev faster it will be a torque motor, stroker longer rod more rotating mass, big bore more snap and more mid range power