3/8 Inch Street Performance Pushrods 11-19 Ford 6.7L Powerstroke XD322 XDPUpgrade the weak link in your 2011 2019 Ford 6. 7L Powerstroke valvetrain with the XDP Pushrods 3 8 inch Street Performance XD322. At almost 10 inch long, the stock 5 16 inch pushrods in your 6. 7L Powerstroke are not adequate for a modified engine. Increases in valve spring pressures, engine RPM and cylinder pressures can quickly stress your pushrods and push past their physical limits. This causes flex that leads to valvetrain damage and power loss.