Well, I can't find the measurements of the new cam's base circle... old one was 1.5" though, according to my notes. The new one is definitely at least a tenth of an inch smaller but beyond that I can't say specifically by how much, which is terrifically useless.
As for why, I have no idea. I told Lunati to duplicate my cam. They screwed around, almost screwed me over, and finally ended up overnighting this thing to me along with my old cam that I had sent them for duplication. They have the same specs (lift, duration, LSA) but the new one is a smaller base circle. Would have sent it back and told them "no, I want EXACTLY the same" but by then they had already dicked me over enough that I had to have the car back in one piece in less than a week, which meant they had no more time to screw around some more trying to actually do what I told them to do.
Can you tell I'm a little bitter about my experience with this company? LOL.
At any rate, the cam is in there, it's broken in, it's got 10k miles on it, it ain't going anywhere. So I just want to make sure that the rest of the valvetrain is playing nice with it since I guess it's in there for the next decade or 100k miles or however long it takes me to kill the motor again.
1966 Modified Fastback - Driven semi-daily!
and rebuilt even better
289 v8, 4-speed, 3.25 9" rear, goodies and stuff.
See my travel blog here for my adventures: http://calamityjaneroadtrip.blogspot.com/
2014: 10,051 mile, 2-month-long road trip around America
2015: 3,000 mile trip to Knotts in CA, CO to East Coast, an engine rebuild
2016: East Coast to TX, Hot August Nights, more trips to the East Coast
2017: Several long trips in the works! Stay tuned