HPT Valve Spring Compressor Tool- for Honda K20a, K24a, F20C, F22C S2000. HPT Valve Spring Compressor Tool- for Honda K20a, K24a, F20C, F22C (VERSION 2.0). Application : K20, K24, F20C, F22C Engines. We include all hardware needed to bolt on and go as well as assembly lube for the botls and to help stick those pesky keepers to the HPT screwdriver.