I'm about 99% sure that this is a Hydraulic lifter but I would like someone else to confirm that it is or isn't.
Thanks,


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does the cup push down when you push something down on it?

I can't push it but would you be able to is it were collapsed? looks like the inside cup is made separate form the body of the lifter.

it would only be collapsed if it were hydraulic. and you would see were the plunger hand recessed to. even the solid lifetrs are acually made in several pieces to allow for oil to get out the rockers. there is a valve inside and the ciclip holds the guts together. if it was a hydaulic lifter you could with force push the cup down some and it would return from spring pressure inside.

definetly a solid lifter. If it were hydraulic, you would see the retaining clips. Compare that lifter to these:

this explains the hydraulic lifter http://images.google.com/imgres?imgurl=htt...sa%3DN%26um%3D1

Yup. Solid.

Many thanks guys!

Solid.. Looks like a last generation Johnson lifter...