Comp Cams Valve Springs Spring Rate:105 lb 3400 Notes:

3400 Notes:

2011 CHEVROLET CRUZE 1LT

With a base kit on a stock GT at 6psi of boost high 13s @ 100mph can be expected

Turn the engine over so that one valve on a cylinder is open

The material is like OEM plastic

Comp Cams Valve Springs Spring Rate:105 lb 3400 Notes:Safely increasing cam lift or maximum engine RPM can require new valve springs. On the 3800 we use LS1 beehive valve springs which means that when running new springs you will also need the beehive style LS1 retainers. 105# springs 105# @ 1. 800" Open 293# @ 1. 200" Spring rate 313# Coil bind 1. 140" 125# springs 125# @ 1. 800" Open 367# @ 1. 150" Spring rate 373# Coil bind 1. 100" 136# springs 136# @ 1. 800" Open 412# @ 1. 170" Spring rate 438# Coil