It's not necessary to use high ZDDP oil with a roller cam. It's an anti-wear additive, so it doesn't hurt. A SN+, GF-5 rated 10W-30, which is limited to 800 ppm of zinc and phosphorus, will do fine. The good news is it will be much easier to find an oil suitable for your engine.
How do you like your Hughes lifters?[/QUOT
So far the lifters are fine , no noise in the morning and they take a 7,000 rpm blast with no clacking like the old standard lifters . the old lifters made noise until warmed up changed them times always the same got to say the hughes lifters are great so far , a bit expensive but worth it as they drop right in no work needed I'm using the cryo treated offset rockers as well no complaints
