Help with a 726 poo motor

[thesledhead]

I have a 726 Polaris motor in a prox and I'm having a hell of a time tracking down some head o rings. I have talked to Polaris and they said "just order the o rings from slp for their 727" well the outside was too big and the inside was a shade too small. do any of you guys have some or even a part #

 

[waterskipper]

i run the slp o-rings on my 726s and 797s, use a lil grease to help get them to stick in the grooves better. otherwise they dont make new 726/797 o-rings to my knowledge