Comp Cams Valve Springs Spring Rate:105 lb The performance drop in struts

The performance drop in struts are built to order to make sure they are correct for your application

5 Ohms / High Impedance / High-Z (No ECM driver modifications required)

5" tensioner pulley (stock is 3") will allow you to reuse your stock belt with a 3

The material is like OEM plastic

2011 CHEVROLET CRUZE 1LT

Comp Cams Valve Springs Spring Rate:105 lb The performance drop in strutsSafely 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