I'm pondering buying oem,aftermarket, or aftermarket "performance" valve seals.
which do you guys use? i'm planning for 300+ hp to the wheels with probably 12-14 psi boost.
Also, what valve keepers are you using.
thanks

i have titanium keepers and type-r dual valve spings. gsr cams

 

oe

 

for both?
thanks

 

oem here

 

i used Supertech viton seals on my build with no problems so far

 

oem, replaced at 90k 400whp now

 

thanks guys!