big base circle cam in stock elem.

[Pedigo Perf]

Originally Posted by Billy Nees

The issue here isn't the larger cam bearing, it's the larger base circle LOBE that the larger bearing register allows you to fit in.

I found the reply letter from Pat Cvengros regarding the cam journal size, of course this does NOT address the base circle of the lobes directly (as is the topic of this thread) , but if someone is getting a large base circle lobe on a stock core size camshaft in a vintage BBC I would sure like to know.

Here is the letter:


Pat Cvengros
6/9/10
to Tracy

Tracy,

The camshaft may be of the large journal design; the bearings however must be a Babbitt type, non-roller design.

Pat Cvengros

Technical Services Representative

(626) 250-2295