Mixed EDM Lifters

[middleagecrisis]

I recently purchased a nice used Hughes SB solid lifter cam with Hughes EDM solid lifters. Despite the seller's best effort to keep the lifters in order, the driver side bank got mixed up in shipment, while the passenger side stayed in place. So now I have 8 known lifter locations and 8 unknowns. I was planning to do the whole break-in procedure again but am wondering what to do with the lifters. Do I send them all off to get spot faced, just the 8 mixed lifters, or none at all if they are still properly machined? I plan on using the Isky Hi-Rev moly coating during the break-in. Should I just break-in the 8 or do all 16. I've broken in plenty of cams and never (knock on wood) had this situation before. Pretty disappointed in this situation, but it is what it is.

 

[Plymouth 65]

I'd send all of them out to be refaced. Small price for the insurance of a successful break in. 65

 

[Bewy]

They should be stripped & cleaned AFTERWARDS because grinding metal will enter the EDM hole....

 

[RustyRatRod]

Either get them refaced, OR buy new ones. Either way, you will need to put the cam and lifters through a break in procedure as if they were new. @NC Engine Builder can reface them for you very reasonably. He's a good guy.

 

[Illahe]

Either get them refaced, OR buy new ones. Either way, you will need to put the cam and lifters through a break in procedure as if they were new. @NC Engine Builder can reface them for you very reasonably. He's a good guy.

New EDM's are over $300 now!

 

[65TerrorCuda]

Man that sucks. I'd be finding another set of lifters and keep those as cores

 

[Bewy]

Using a Dremel, a groove down the side of the lifter from the oil band to within about 1/8" of the base does the same thing....& no zeroes in the price.

 

[4eighteener]

Do you know the cam lift specs?
Are there witness marks on the lifters?
You might be able to lower the odds some and determine which lifter is an intake and which is the exhaust by the witness marks on the lifter (if any) with the shorter witness mark going to whichever intake or exhaust having the higher lift.
That lowers the odds some, but then you would still have to get those in the correct lifter bore location

 

[middleagecrisis]

I sent these to NC Engine builder a few months ago and had them all refaced. I didn’t want to take a chance by only doing a few.