I need some help..

Ive searched a few times and keep getting different answers..

you know how the new mustangs have the "302" badge on the side..
Well i want two (for each side) but I cant find the correct cu in, or the badge for that manner..
Ive found answers on the 5.3 from 325 cu in -329cu in.

which one is actually correct and where in the world do i find a site/business that makes custom badges or someone that sells some..

amazon
ebay
google
yahoo
wikipedia
bing

tried them all
and no luck..

thanks