Brian Tooley Racing .625 Max Lift Beehive Valve Spring Kit for GM LS

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Brian Tooley BTR .560" Lift Drop-In Beehive Spring Kit for GM Trucks SUVs

Comp Cams 26926-16 Dual Valve Springs Set for Chevrolet LS 4.8 5.3 6.0 6.2

Comp Cams 26918-16 .625" Lift Beehive Valve Springs for Chevrolet Gen III IV LS

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COMP Cams Valve Spring Set 26925-16; Race/Street Dual, 141 lbs at 1.810 in.