VALVE COLLET TRIPLE GROOVE (ONE HALF ONLY)

Collet for the 3 groove valve. All early heads used the 2A11 keeper, noted by the wide slot in the valve. Later production, and most aftermarket valves, use the 88G549 keeper with a single narrow groove. Valve stems with 3 grooves, on some A-Plus heads, use CAM6795 keepers. Order the keepers to go with the valves you will be using! This goes with AHU1897 top cap