Same place we got ours from:

http://cgi.ebay.com/ebaymotors/JDM-Nissan-Silvia-240SX-S13-SR20-SR20DE-Engine-M-T_W0QQitemZ120203066646QQihZ002QQcategoryZ33615QQs sPageNameZWDVWQQrdZ1QQcmdZViewItem