Sealey Valve Spring Compressor OHC/OHV/CVH VS153Suitable for most small and medium sized OHC engines and also for general use on OHV and CVH engines. Universal jaw with 60 155mm capacity and 160mm throat depth. Parallel lift action with automatic lock. Specifications Detail Suitable for most small and medium sized OHC engines and also for general use on OHV and CVH engines. Detail Universal jaw with 60 155mm capacity and 160mm throat depth. Detail Parallel lift action with automatic lock. Model No.