The version you have there are the revised service replacements and are beefier than the first design. They also changed the plastic formulation. I pulled a few of these out of explorer crate engines Ford was selling off after 2001. The older ones were a brownish color and also weighed less.Also I set it in and turned over the engine to make sure the trays wouldn’t be “lifted” due to lobe lift, and at .377 lift from the lobe they did not come off the block. These trays feel very sturdy, if you’ve ever held an LS1 lifter tray and felt the rigidity, these feel stiffer.
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They feel very beefy and several places have extra ribbing built in for sturdiness.The version you have there are the revised service replacements and are beefier than the first design. They also changed the plastic formulation. I pulled a few of these out of explorer crate engines Ford was selling off after 2001. The older ones were a brownish color and also weighed less.
Might that be the part number variation? The two parts that come up have different prefixes, theThe version you have there are the revised service replacements and are beefier than the first design. They also changed the plastic formulation. I pulled a few of these out of explorer crate engines Ford was selling off after 2001. The older ones were a brownish color and also weighed less.
No problem. Yeah unfortunately even for me buying our used lifters at a great deal, buying bushings at cost and me doing the machine work I have about $1,200 in the project. They are really nice lifters though.Thanks, it was Jesel that I found online with them. I guess I was hoping for under $1k in total for them, nice thought though.
Thats the correct cataloged number but the revision code changed around 98. I'm not sure if it just was superceded and the number never changed afterwards.Might that be the part number variation? The two parts that come up have different prefixes, the
F77Z-6K564-AA
still comes up with choices, the older one doesn't.
Can you tell any difference between yours and the one pictured above?On mine the boxes have that number but the guides have an E instead of a Z on them ....
F77E-6k564-AA on the actual guides themselves....
I would guess they are going by the number off of he box, which again, mine had the "Z" number on the box too..... I will compare what I have later and let you knowCan you tell any difference between yours and the one pictured above?
That part number is the one that is not available on eBay right now, the one with the "F77Z" is.