BTR .625 Lift Beehive Valve Spring Kit - .565-inch bronze valve guides - BTR-SK018/6545

Brian Tooley Racing .625-inch maximum-lift beehive spring kit for Gen III/IV LS engines, configured for .565-inch bronze valve guides.

Includes 16 SP018-1 valve springs, valve seals, and SL565045BH-16 spring locators. Uses factory retainers and locks. Not compatible with OEM hat-style valve seals. Verify cylinder head guide diameter and camshaft specifications before ordering.

Manufacturer SKU: BTR-SK018/6545.