http://cgi.ebay.com/ebaymotors/SBC-Chevy-GEN-III-LS1-LS2-LS6-Aluminum-Roller-Rockers_W0QQitemZ380153979779QQcmdZViewItemQQptZMotors_Car_Truck_Parts_Accessories?hash=item5882f16383
Check these out, they are the PRW rockers. We have used several sets of the
SBC rockers, haven't got the chance to use the LS rockers yet but the ones we have used seem to holdup well, the pin for the tip is pressed in and has a clip that keeps it from backing out. We are running them on our dirt track engines at 7000 rpm.