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Re: Flat tappet lifters
On flat cams I will use only GM lifters, they have a hardened disc on the bottom of the lifter rather than case hardening the lifter body. Have broken in 4 engines in the last three years with these lifters and have had no issues (cams were older new cams still in their box). I am going to roller cams in the future due to poor cam cores available today.
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