S&S stands for super stock they build engines for harley davidsons &
custom made bikes.I cant find a web address please help.

Hello pokerrun and thanks for the question.

After a bit of digging around the web I´m pleased to say I found it
for you:

http://www.sscycle.com/

(and I think S&S stands for Smith and Stankos, the original partners
in 1958)

Thanks for the question and if you need any clarification of my answer
do not hesitate to ask.

Best regards and safe biking.

THX1138


Search strategy included:
" engines for harley"
://www.google.com/search?hl=en&lr=&ie=ISO-8859-1&as_qdr=all&q=%22+engines+for+harley%22&btnG=Google+Search