Light checker springs or your combo's actual springs? For determining the right pushrod length, each has its pros and cons. Gee, Kenny. I don't know. It depends how cute the spring is. (Groan.) ...

If you are into precision engine building, you've no doubt heard the standard line for establishing the proper pushrod length: With proper pushrod length, the rocker tip should be in the center of the ...

As complicated as engines can be, they are remarkably resilient. When it comes to valvetrain stability, it's critical to get the tolerances correct for the utmost power and longevity. This means ...