Viper S
VIP Member
Can any of you guys give me specifics on engine differences between my Viper S black head and the blue or red heads 700's. Would Carbon Tech reeds or Boysens help snap up engine response. Compared to my old 02, the S already feels like a different reptile! 
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mopar1rules
Active member
the blue and black head engines are power valved. the red head is not. if your stock reed petals are worn out, just buy a set of carbon fiber carbon techs and be done. don't spend the extra cash on v-forces or boyessens.
Get a hold of Mr viper on here. He has a set of v force II's. they really woke up my viper. Maxdlx
redsnake3
New member
viper engine is very different from the blue head(srx) engine with the pistons being almost the only parts the same. and the red head engine is completly different.