SBC LS1 VALVE SPRINGS
CRANE 144832-16

SBC LS1 VALVE SPRINGS

LS1/LS6 Chevy/GMC V-8 Valve Springs

Made from premium quality chrome-silicone steel

Precision-wound and heat-set for durability

Spintron-proven and dyno-tested

Increases horsepower and torque yield for any LS1 cam profile

Quiet-operating dual spring design controls harmonics without triggering stock "knock sensor"

Matching machined steel, and titanium alloy spring retainers available

No-machining required to install

This is the LS1 spring that works and doesn't break!

Outer Diameter Outer Spring	1.275
Outer Diameter Inner Spring	.937
Inner Diameter Inner Spring	.667
Damper	No
Seat Pressure @ Installed Height	112 lbs @ 1.800
Open Pressure and Height	352 @ 1.150
Coil Bind	1.045
Maximum Net Lift w/.060" Clearance	.650
Average Spring Rate (lbs./in.)	352