Pushrod Length for 351W with GT40s

[jckkys]

You may want to read this article to establish your goal in the valve train geometry;https://www.hotrod.com/articles/ctrp-0611-rocker-arm-valvetrain-geometry/

 

[JB Fab]

Making it work and doing it right are two different things.......
Half of measuring the pushrod length is making sure you are measuring at the correct rocker angle. If not your guides will wear quicker than usual... TICK.....TICK......TICK....

 

[broncosam]

Measuring is always best and I want to add too, that if you have installed guide plates, make sure the pushrods you get are hardened.

 

[jckkys]

The article I referenced covers all the issues of valve train geometry and proper fit.