are there any foams that will fit these tires?

[blueb8llz]

i prefer molded foams but any foams that fits will be better than using the stock foams. heres a link to the tires i need them for.
http://www.rcslot.com/pc-radio-contr.../LOSB7206.html
the diameter is close to 6.5 inches.
i bought these foams but they are still to short, they fit more for tires that are 5.75 inches tall:
http://www3.towerhobbies.com/cgi-bin...&I=LXNNL2&P=FR

and i heard the 40 series proline molded foams will be too small as well.
anybody know of any foams that will fit my tires?