Doubt it.  At Kawartha you still need to brake and hammer it with a SOHC and DOHC. 

At CCS there are not many DOHC, but at Kawartha and ptbo you can see the advantage the DOHC have over the SOHC.  From an outsider looking in, keep it the way it is, you have tons of cars, no need to mess with it!

;D ;D ;D I was Visiting Sunset last Saturdayto see whats up on the Construction,,I had the pleasure to have a one on one with Mark Dilley,, and He said to the wife and I that he is going to see about 16 valve for Sunset,after all the ol engines are going to be nil soon ,, so We are hoping to see it happen,Mark is a Nice guy to chat with'!!,, thank you Mark for looking into the 16 valve thing for us,,and to who is curious about the Track Consruction''al I have to say is WOW Time to Change the Gear Ratio guys and gals or start upshifting LOL'',,and bring extra under wear ''Gentlemen and Ladies Start yo' Engines. ;D ;D ;D ;D ;D ;D ;D ;D ;D

Ok Thanks guys ,I want to see my Son bring his Subaru and He wants to run a 16 Valve , but thank you 240 and jibby,,Gee I wonder if Subarus are Aloowed???,, it is a Front wheel drive Not AWD'',,

Sunset has allowed 16 valve motors for yeaaaaaars  ???