LS3 Complete Cylinder Head (PART #CROW-12675871)

Genuine GM LS3 complete cylinder head
See below for further specifications

821 casting cylinder head complete with .550" lift springs, retainers & locks

Spring Specs:
90lbs @ 1.800" Installed height
275lbs @ 1.300" Installed height
Coil bind @ 1.220" Installed height

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