In our use, some 200+ seat pressure and 600+ open, 0.683" roller. The Indy rockers lasted 2-3 years of street & strip use, a couple of thousand miles a year. Most likely you would need new pushrods even with the Harlan Sharps even though they use the cup end, the needed length is different than with the Indy/Doves, I think.


Plynouth VIP '67 TT IC EFI