will prelude valves fit in a b series head?

 

would there be a reason why you would wanna do that? there are plenty of different companies making all types of A/M valves for a gsr. good luck with your choices,

 

they will. (@ 35mm they're 2mm OS on the intake- where they'll make the power.) call Endyn or RLZ and have your credit card ready to make them work properly, though. you'll need ~86mm bore and you'll make awesome power, but you'll have to pay for it.

 

Sounds like your looking at all new seats to use them $$$.
Glenn