340 break in question

We are talking about break in, not everyday driving. Plus, John Callies, who owns Morel says that roller lifters have a break in period. You can find that on Johncalliesinc.com which is his Morel site.


I'm not saying that there is no break in for roller cams and lifters...

I'm saying it's a good idea to keep your engine RPM's low as possible until it's warmed up...

Here's a graph of engine wear vs operating temperature... This is for cylinder walls, but applies to any pieces that are moving in relation to each other without direct oil pressure on them...

Wear vs Temp.jpg