We have FOR SALE Barker Engraved Pushrods  7.300 5/16, .080 wall, 16 pcs, these are used for retro fit hydraulic Roller Lifters in early model blocks .(1955-1987).BEWARE of cheap imitations (made in USA)and have BARKER engraved on them.   so Buy now…we have almost every size from 6.350 – 8.450…