WSM to .473 bolt head change info

Gents,
I have all of the parts I need, but when I put them together, I noticed that the wsm CRF bolt head I took off, is just a hair longer than my new bolt head I ordered. This causes the firing pin protrusion to be different. I'm not familiar with changing the protrusion on the firing pin, so do I need to order a L/A style head, or just change the pin? The action I'm working with is a Model 10 large shank.

Here are a couple of links that may be of help. The LA style head will not work on a SA. Hopefully these links will help.

http://www.savageshooters.com/conten...rotrusion-Data

http://www.savageshooters.com/conten...Configurations

You just need to change the firing pin assembly.

http://www.midwayusa.com/product/865...inchester-blue