R3 block info
I have an R3 48 428 4" stroke tall deck with Victor heads 2 inch babbit cam, almost give up on the cam a guy called & said he had a blank Crow cams in Australia ground it up.
The Victor heads needed a bit of machining for pushrod clearance solid roller Hughes offset rocker kit ,3/8" smith bros pushrods also the TTi headers ,Billet rocker covers & valley plate from Jeremy Harshman .
There is a Set of W9 Chapman heads on Facebook at the moment