Crane Cams Dual Valve Springs Fits Chev Holden Hydraulic Flat Tappet Set#CC99838 OPK12 Ideal port position - allows

Ideal port position - allows custom porting for maximum power

ideal for charging tablets

a detailed tuning guide

5 M15A 2004-2010 (Front)

rusted bolts

Crane Cams Dual Valve Springs Fits Chev Holden Hydraulic Flat Tappet Set#CC99838 OPK12 Ideal port position - allowsThese Crane valve springs offer top quality performance and are made from chrome silicon to tolerate more lift, build compression, and last longer. Crane offers their springs for most domestic V8 engines. Specifications : Part Type: Valve Springs Product Line: Crane Valve Springs Valve Spring Style: Standard Number of Springs Per Valve: Dual Retainers Included: No Outside Diameter of Outer Spring (in.): 1. 465 in. Coil Bind Height (in.): 0. 950 in.