5mm Billet Aluminum Retainers for Predator Non-Hemi 212cc & Tillotson 212R/225R/RS Engine for Dual/Single Spring Valve Stem Keepers,Red

5 mm Billet-Aluminum Retainers, CNC-machined and matte-finished, slot straight into Predator Non-Hemi 212 cc and Tillotson 212R/225R/RS heads. Hard-anodized for race-grade wear and chemical resistance, they cover stock, 22 lb or 26 lb single springs and 32 lb/36 lb dual sets (dual needs stainless R-35/36/37 valves; stock valves unsafe). Kit packs 5 mm keepers/locks—light, tough, high-RPM ready right out of the box.

• Broad Spring Coverage:Single: Supports stock, 22 lb, 26 lb.Dual: 32 lb & 36 lb sets.Requires 5mm stainless steel valves (e.g., R-35/R-36/R-37) for dual springs.
• Fitment:Fits for Predator Non-Hemi 212cc for Tillotson 212R/225R/RS (standard 5 mm valve).Note: RX2725 Tillotson 212/225 head is dual-spring only—must pair with R-35/R-36/R-37 valves.
• Material:Hard Anodized Coating permeates the metal, blocking wear and resisting chemicals.
• Finished:Matte-finished surface built for high-RPM racing engines.
• Kit Contents & Safety:Includes 5 mm valve keepers/locks. Dual-spring use requires recommended stainless valves; stock valves unsafe.