Just like the title says I need help on whether to go with the bc single valve springs or the supertech duals. I have already talked to some people and they said just to go with the duals. i was looking at the spring pressures and the singles seem to have less(i.e. better for a daily driven car?). I have all bolt on mods with cosi 272 cams. I am only trying to raise the rev to around 8k to 8.5k mainly for autox. Bottom end is stock getting cosi oil pan scraper and rod bolts. Also i have a cosi 1.3mm head gasket and arp head studs. Any help on the springs and suggested rev limit will help.

 

bump

 

try the dual supertech valve springs...i'm going with those when i install my cosi 272 cams.

 

im pretty sure when u go with dual springs u need some valve work..new guides etc..

 

The stocker are good to 8k But your cams are alittle agressive so just go for the duel set up im happy with mine.

 

i got the supertechs with revolver cams. so far so good.

 

I got a set of supertech dual valve springs and supertech ti retainers. Will sell for cheap.

 

cool saw a kit : springs, retainers, seats, keepers, seals, and guides for 570. But was talking to some of the venders was half the price with springs seats and retainers.