i found 4 lifters from ford tractor(ova head valve) they are identical toY blocks,except have a small grove for a snap ring which would make chaging cams less risky.lockaly very expensive10$ @ cn.

After communicating with Clay Smith, Topline Hylift Johnson, and others, I learned that Topline supplies lifters to Clay Smith, Isky, and Comp Cams. The Comp Cams lifters are advertised "Made in America," and Toplines are made in Michigan. After getting a prompt refund for the Taiwan lifters, I ordered a set of the Comp Cams lifters from Scoggin Dickey in Lubbock, TX. 

That's what mine were supposed to be.

Not Schumann's.

Isn't this the company that furnishes lifters to Isky?

http://toplineauto.com/wp-content/uploads/2019/04/Lifter-Application-Catalog.pdf
Got my USA made lifters here. Good folks.

"FREE SAMPLE"

I used Com Cams lifters in my current motor.  I have no idea where they were made. No problems so far. 

In a not too recent blurb by John Mummert, he indicated that some Y-Block parts are just not available any longer made in the USA... However, not all are coming from Asia. For instance, the roller timing sets are out of Australia & another item that escapes me at the moment, is made somewhere in S.America..


Paul

.. II RC, Schuman's outfit is in Bluegrass Iowa..


Paul

Unless John moved to Iowa, they didn't come from him.