valve springs

**sdenton8** · 07-03-2010

G8 GT valve springs can be used with a rocker setup right? What is the seat pressure on those springs? and I can use grandprix retainers and locks right?

**Silver GTP** · 07-03-2010

I just went through researching this last week and I was told you use the current L67 locks, but you need the L76 retainers to go with the L76 springs.

**sdenton8** · 07-03-2010

Ok thanks for the reply. I can get the springs cheaper through work. I have the steel retainers that zzp sells for the upgraded springs. Would those work with the G8 springs? Are they closer to the 90# or the 105# spring rate?

**TheOtherNick** · 07-03-2010

Yes those retainers work they are all the lsx style springs.

**sdenton8** · 07-03-2010

Sweet I have the retainers already since I can use them. I can get the G8 springs thru work.
Is there a big diff between the modded 1.9 rockers and the roller 1.95 rollers? I know the rollers cost more. These are gonna be for the top end performance.

**TheOtherNick** · 07-03-2010

For the price no. Gains are small, but they sure do look cool. I will get some stock ratio rollers for my car some time.

**sdenton8** · 07-04-2010

Yea thats why I'm thinking about getting the rollers cuz they are easy on the valvetrain and mite as well go big or go home.

Does anyone know the seat pressure of the G8 springs?

**Scimmia** · 07-04-2010

Originally Posted by sdenton8

Does anyone know the seat pressure of the G8 springs?

90# seat pressure, but with a roughly stock spring rate.

**sdenton8** · 07-04-2010

Thanks guys. What would be better the G8 or 105 crow springs for 1.95 rollers?
Just decided to go with the biggest lift rocker since I dont want to cam it.