""What weight was your break in oil?""
- It was the Driven brand 30.



""you put a new cam and lifters in?
maybe the new lifters have slightly more clearance in the bores than the old?""

My previous cam was in this engine for 16 years and it always showed 22'ish at idle and 50'ish at cruise. Then I swapped the cam/lifters and it too showed the same oil pressure during break in and the next 3-4 hours of driving. Then right after I drained the break in oil/filter and replaced them both is when the oil pressure went down on the first drive.

Thank you both!

Last edited by YO7_A66; 07/16/21 08:47 PM.

1970 YO7 A66 [Canadian Export] F8 Challenger
340 (Currently in shop for stroker assy.)