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.