Looking for aftermarket parts to modify or upgrade your 2004 Buick Regal with valve springs, retainers? At Tunersports.com we carry a huge selection of the top name brand performance valve springs, retainer parts and accessories.

OUT OF STOCK 774-12Lock Angle - Stock Valve Stem Size - 1.055" Spring Diameter.... COMP Cams Steel Retainers 26915 & 26918 1997-2004 Buick Regal GS / LS $89.89 |