Comp 26918 Valve Springs

Set of 12 Comp 26918 Valve Springs.  LS style seat with matching seals for your size guide OD are recommended for 3100, 3400, and 3500.  Stock 3500/3900 VVT engine seat/seal combination are fine since they have a .500" OD guide.  Stock 3100/3400/3500 seat/seal combination require a bit of effort to push them on, which will increase friction and wear.

• 125 @ 1.800"
• 367 @ 1.150"
• Coil Bind @ 1.100
• 372 lb/in spring rate