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The 6.7 got them in '19 I believe. They have been a problem child for us. They have little "ears" designed to hold them in place in the lifter bores. The ears on the lifter wear out the bore if not lubricated properly and they will rock from side to side. We have replaced 3 engines for this...

Also an interesting side note for y'all while I am still thinking about it. We had a dodge cummins pickup come into the shop at work a couple of years ago. Customer was complaining of a ticking noise, turned out to be hydraulic lifter failure, but anyway - while my buddy who was working on the...

Good evening everyone. Thanks for all your inputs! I think I've settled on my plan for this build. Bottom end and heads are going to stay stock, I'm going to go thru the motor and re gasket it, and while I'm in there also install new carb, intake, headers, cam/lifters and anything else I may...

Hey all, long time listener first time caller here. I recently picked up a '77 440 motor and a 727 both out of a motor home. Seller said it had around 60k miles on it. It's a strong runner, cranks evenly, no abnormal noises etc, and I have yet to find any sign of internal damage. Poked my bore...