one site is
www.raceeng.com they sell all internal parts for just about any engine you can concieve. they also have nice stroker kits...
you can also try
www.crower.com and check out their honda/acura section. crower has some really nice stuff if you have the cash.
hope that helps... and if you have any questions on building your teg... email me at
[email protected] or go to
www.midnightracing.org and choose contact!
later