pushrod length

Cup/ball pushrods for adjustable rockers and hydraulic lifters will be around 7.21" or 7.31". Cup/ball around 7.5" are for solid lifters. I believe the ball/ball with OEM rockers and hydraulic lifters are also around 7.5".

You're suppose to have an adjuster thread or two showing under the rocker arm with proper preload or lash.