Is this a good deal?

[Hank70SS]

Originally Posted by stalkingbear

I can sell you some empty HP cartridges that you could maybe adapt... I hear they fit all years..... 6 bucks and I'll even throw in the test reports.

What's the ZDDP level on the ink for those, I have a flat tappet print head? Don't want to wipe another one and have to do a tear down and rebuild again. Probably should install a roller roller print head but the retro-fit kits are pretty pricey. Plus I'm trying to stay as stock as possible, my printer is all numbers match. You can't imagine what a date coded print head goes for these days. Check it out on Ebay if you don't believe me.