hello i was thinking of buying the wolfpack radicals converstion kit for my ss...i was wondering what big blocks will work in the car after i get it...cause im not sure what the crank type is in the ss to look for a bigblock..so any help would be great as i am allready looking at some engines...like will the ofna engines work,or the os 21,or even the hpi 21..and also is there one out there that i could use a pullstart on unstead of the starter box..