Took off cowling, plenum and baffling Took off bottom parts, intake tubes, pushrod tubes and exhausts Removed cylinders and pistons Installed new pistons and cylinders Discovered need for different CHT sensors, no ports for bayonet style sensors ... Ordered 18mm sensors Reinstalled all bottom parts Tried to deflate hydraulic lifters to install rocker arms but inflated again too fast Pushed in valves instead and then installed rocker arms