Might be a useful exercise to e-mail or phone Edelbrock and inquire as to where they were sourcing their lifters from back then. They might just ante up and tell you true or they might dance around the question faster than a one armed wall-paper hanger with a nasty case of the crabs. it might also say on the box, something along the line of "assembled in the US from globally sourced components" That tends to translate out to, the body came from China, the plunger from Mexico, the spring from the Phillipines, and the retainer from ???? If the box happens to say, "made in Poland or Ceska, you might have lucked out.
When I commented that the ones I am sitting on were purchased over ten years ago, the resulting sentiment was that I was fairly safe. Up until now I had not thought to look for a date code or a production slip in the various boxes. Now I may just have to go and do that little thing.
The link below goes to the TriFive Forum and is an excerpt of a lifter discussion that occurred over there. It might offer you some ideas on where to source a set of lifters that you could depend on.
www.trifive.com
Nick
When I commented that the ones I am sitting on were purchased over ten years ago, the resulting sentiment was that I was fairly safe. Up until now I had not thought to look for a date code or a production slip in the various boxes. Now I may just have to go and do that little thing.
The link below goes to the TriFive Forum and is an excerpt of a lifter discussion that occurred over there. It might offer you some ideas on where to source a set of lifters that you could depend on.
Current Problems Related to Flat Tappet Hydraulic Lifters
www.trifive.com
Nick
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