Hi Ron, I'm not running the 1.68" valves, just using that old AMC racing information as reference. I'm planning to run a 1.94 intake, 1.50 exhaust on a bored & stroked 304 V8. Bore will be at 3.796". I was considering the 1.60 exhaust valve if it would clear and not be shrouded by the cylinder wall. Thanks, Greg Taylor :) <>< amxron <amxron@xxxxxxxxxxx> wrote: Even if they fit they will be shrouded by the walls. You could crutch the exhaust w/ a longer, split duration cam. I think a 1.68 exhaust will hurt you on this motor. amxron 70 AMX 70 Hornet 78 FSJ Wagoneer Fleet&JEEP Mgr Orbit/AMC-JEEP 50-1787 _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list --------------------------------- Looking for last minute shopping deals? Find them fast with Yahoo! Search. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://splatter.wps.com/pipermail/amc-list/attachments/20080302/3f9d4260/attachment.htm _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list