I know you would have to do Valves, Valve Springs & Retainers witha good Port & Polish, but Crower doesn't even make Cam Gears for the D17A2, nor do they make Valves, Valve Springs & Reatiners for the D17A2. So what, are you supposed to Miss Match other parts from different Companies or what? I'm Just Curious about that...

 

your supposed to not do it.

 

Yea, jameson is right. D17's are major fail as far as "modding". You will never see good results and it is a waste of your time.