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Eman · 10-30-2023, 02:57 PM

I know stockers must be running higher spring pressures and more exotic cam profiles then the average circle track or bracket car. I've never owned a roller cam, maybe someday. The last 2 I broke in I did use "break in" oil, in the past I used non detergent 30w or regular 30w with GM EOS additive. Break in is always high anxiety no matter what especially after all of the failures you hear about.
As far as oil goes I've used just about everything on my last bracket motor. I used regular Mobil with Lucas ZDDP additive, Valvoline VR-1, Lucas Hot Rod oil, Mobil 1 10w30 with Lucas additive, Mobil 1 15w-50 no additive and I've run it on AV gas, 110 and Methanol. Valve lash was always spot on. Howards solid flat with the laser hole on a Howards tight lash cam.

10-30-2023, 02:57 PM	#123
Eman Member Join Date: May 2014 Location: E TN Posts: 473 Likes: 16 Liked 133 Times in 76 Posts	Re: Flat tappet lifter failure I know stockers must be running higher spring pressures and more exotic cam profiles then the average circle track or bracket car. I've never owned a roller cam, maybe someday. The last 2 I broke in I did use "break in" oil, in the past I used non detergent 30w or regular 30w with GM EOS additive. Break in is always high anxiety no matter what especially after all of the failures you hear about. As far as oil goes I've used just about everything on my last bracket motor. I used regular Mobil with Lucas ZDDP additive, Valvoline VR-1, Lucas Hot Rod oil, Mobil 1 10w30 with Lucas additive, Mobil 1 15w-50 no additive and I've run it on AV gas, 110 and Methanol. Valve lash was always spot on. Howards solid flat with the laser hole on a Howards tight lash cam.