break in oil and changes

On my last hot rod build I ran 820x15 bias ply slicks, a 60's vintage Cragar blower intake, a Clay Smith cam and Triple Nickel '55 354 heads so yeah I would run what guys did 50 years ago!!!!:rofl:

I'm just kinda smiling at the guys that are so caught up in the latest and greatest oils and additives when they are rebuilding a slant 6 or stockish 318 with a stock cam and valve springs.

Once I get my local Farm and Barn 'racing oil' tested I'll publish the results. I would bet that $3.00 per quart oil has most of the zddp that the boutique oils have. Don't get me wrong.... I don't have a problem with any of the Penn Grade, Lucas, CenPeCo, Shaeffer, etc oils... just a bit too high dollar for me if I can get the same performance for less.

Might just use some old school non-detergent with EOS added....:confederateflag:




Your assumption is more zinc is better. It isn't. If you actually test oil, you'd learn that. Valvoline ZR-1 is loaded with zinc and it's a power loser.