[Curt C.]

I have heard that Original Equipment Ford hydraulic lifters are supposed to be good pieces for stock to moderate engines. If you change to the Comp retro link bar lifters you may need to change push rod length. You wont know for sure what length you need until you get the new pieces mocked up. I say stick with the Ford parts. Do the rocker test as described above. You may only need a single lifter and they can be ordered individually. Take the intake manifold off and pull the broken lifter out to make sure you are ordering the right piece. If you just start ordering parts before knowing exactly what is needed you will have to wait longer.