they are interchangeable. Problem is, the cam 'seats' to each lifter, so you can't just put them back anywhere. They must go to the slot they were in. Maybe you know that already.

I personally wouldnt use 11 of 1 kind and 1 of another. I would replace them for a complete set.


Deve

1950 Chevy 3100 Deluxe Cab
1950 Chevy 3100 Standard Cab
In the Stovebolt Gallery
The Think Tank
More info and tips at Deve's Technet