Quote:

I would like to learn how to do it myself, so I guess what I'm asking is, what are the required tools other than a valve spring compressor? When a machinist checks them out, what specifically are they checking and can it be done at home with the right tools?

I called 440Source today and got some answers to some of my questions.

Locks and retainers: 7 degree locks and retainers that come on them OOTB now made by Comp Cams, but he felt that my cam still needed the 10 degree upgrade.

Springs: 105/300 spring pressure, he said it was more a matter of them not being as durable in the long run with my cam than the spring pressure being too weak for why he recommended that I upgrade the springs.

Comp Cam spring upgrade they offer: 130/330 spring pressure (which would be just right for my cam). Comp Cams part number 924-16.



With 330 open pressure I'd stick with 7* stuff... high
spring pressure will pull the lock down through the
retainers.. but you dont have it