Small Block & Big Block Chevy Specific - found a torque converter on ebay...someone tell me what im missing

I found this TCI streetfighter tq converter on ebay....

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=190315292258&viewitem=&_trkparms=algo%3DLVI%26its%3DI%26otn%3D1&category=63692


Here is what i think is the same converter on summit...

http://summitracing.com/parts/TCI-241000/


If they are the same, i have one question, it says that it fits 168 tooth flexplates only, I know its sounds dumb but how can I tell what flexplate i have without taking it off?

take the flexplate cover off and mark on tooth and turn the flexplate with the tool and count the teeth.

i beleive the 168 is 14"

do those converters look like the same model?

i'm pretty sure a company called transmission specialties makes the summit converters. i've got ts 10hs i've used for years.

a 153 is smaller than a 168 tooth flywheel/flexplate. Or you can count the teeth... have fun with that one lol

cross bolted starter = 168 tooth straight across 153 as a general rule

cross bolted starter = 168 tooth straight across 153 as a general rule

thanks, thats the kind of shortcut i was looking for!