Bugged Build Thread

[Bugged]

How do I know what the right zddp levels are? I was reading that zddp over 1200ppm can be damaging to the cam, causing spalling. I also read that higher performance motors who change the oil regularly after each event often use higher zddp level due to the increased pressures of higher spring rates.

Any suggestion on a good oil to do an initial re-break in? Should I break it in, drain the oil, and change oils? What do people commonly use, for break in and for normal use?

Also, would it not be a good safety measure to just replace the valve springs? Wouldn't the potential consequences of having a bad valve be valve float which could cause catastrophic damage? How difficult is it to replace the springs? Are there other things to adjust once the valve springs are replaced?

This car has been a learning experience for me the entire time, and these forums have provided invaluable help. The engine is the final frontier for me and I know I have a LOT to learn. I appreciate all the help everyone has given me this far!

-Zach

[Bogara_ZO]

I'm also interested in this zddp thing. Is it necessary just for the brake-in period or always onwards?

[NO_H2O]

Good reading on oil. http://http://www.lnengineering.com/oil.html
1200 ppm is a good guideline for the minimum ZDDP level to use in a flat tappet engine.