hi
lucas ,5w30 semi synthetic ,supplied cam lube ?
no cam manufacture i know of recomends synthetic oil for brake in .
compare the cost of the products used and the failure hassel to 6 quarts of amsoil 30 weight brake in oil .
never a failure and run it for first 1000 miles before change in all engines i build .
No he used the Lucas additive, not their oil. I fail to see how using a semi-syn oil with the ZDDP additive could have caused this. Since 14 of the lifters are fine I don't see how the oil was the problem.
It’s not an oil issue. The one thing that stood out to me was cranking it over without it firing. If it’s not ready to fire, I don’t ever crank on it with the starter. I’d have to go back and read your OP but it seems to me it sounds like he cranked on it quite a bit before he actually fired it. It doesn’t take much to do the initial damage that doesn’t show up right away.
FWIW I never ever use less rocker ratio, or pull inners or any of that. Ever. If the lobe is that aggressive it needs a roller on it. My last cam was close to Comp’s MM lobes with 155 on the seat and 355 open.
So my guess is he hurt it cranking on it.
