Hi PSIG,Gah, they changed something on the forums and you lose what you typed. :bicker:Anyway, I just caught this thread and the interesting lifter bores you have. My short answer: There is a (possibly) simpler and cheaper and better fix, which is sleeving the lifter bores (a common procedure) which solves any wear, corrects the length, and allows you to use any lifters including the ones you already have. However, you might be in real luck, as that odd rabbet step may indicate sleeved bores, with the wrong (shorter) sleeves. If so, press new longer ones in and you're golden! If not, then just sleeve them properly (removing the step) and put it all back together. Just looking at options. Good luck!
Example of one random sleeve supplier (BHJ Products) offerings of standard Ford sleeves. Custom and other suppliers have yet more:
Thank you for the reply and with the idea of sleeving the lifter bores. It is definitely a way out of this conundrum. But I think the Morel lifters will work, which would save me from stripping the block bare again and hauling it back to the machine shop and waiting another month or longer to get it back.
I had a look at the block and I cannot find a definitive step or interface for an already inserted sleeve. In fact there is a similar chamfer found on the other FE's but just lower in this engines lifter bore.
Perhaps it was a Monday and the machinist setting up this run was a wee bit hungover.
Actually judging from the rest of the "oh crap" moments at the factory and still shoved the car through it really doesn't surprise me. There was a huge dent behind the Cooling and Heater engine bay plenums that could only have been done at the factory as there was no other surrounding damage and they threw it together anyway even with a big gaps on either side of the fiberglass plenums. Then when removing the original undercoat it was really insanely thick on the passenger rear floor pan, when I removed it there was a another huge gash they just covered up.
I really shouldn't be surprised I guess.