Savage probably won't sell you a bolt head as they consider it a Gunsmith Only Part. I would consider ordering a new WSM Push feed bolt head from PT&G.

With that you just swap out the bolt head and remove the standing ejector inside your action (the standing ejector only works with the CRF bolt head you have now) and you should be set to go. Remember any time you change bolt heads its a good idea to double check your firing pin protrusion.

EDIT: I see you are in Canada and I am not sure if PT&G ships to you up there or not. Here is the part number and description straight from the Savage Parts Finder on their site: BOLT HEAD RH SHORT HVY MAG PUSH FEED - P/N: 106190 $29.00
Hope that helps.

PS- for those of you that are wondering, search gunbroker for the factory model of rifle you wish to get part numbers for. Look at the pics in the auction, often they get the serial number in one of the pics. Then just plug in the number at the Savage Part Finder and presto. There you have it.