I'm with Jano on this. I put a kent 35 in mine years ago, used their lifters and one decided to blow it self to bits. It cost me the cam, a valve, all new oil and a new sump gasket and head gasket set. When i got the new cam i bought genuine ford lifters and they lasted until i took the car off the road to drop the zetec in which meant around three years daily use and about 30k miles with out any trouble at all. Don't use any hydraulic lifters except genuine ford!!