Another pushrod length question.

Edelbrock 60779 heads? There is not such thing as a 6077 Edelbrock head.....

Stock stamped LA small block rockers use ball-ball pushrods, not ball-cup pushrods......something is confused here. Please clear up waht rockers you are using; if stock stamped rockers, then you need ball-ball pushrods. If the pushrod end of the rocker has a ball on it that fits into a cup on the pushrod, it sounds like you have 273 adjustable rockers....??? Can you share a pix of a rocker?

BTW, the cups are typically .130-.180 deep from top edge to bottom. Ball-cup measurements from the tip of the ball to the bottom of the cup ( the so-called 'effective length') will be that much shorter than the measurement from end of ball to top edge of cup. So you need to know what measurement is being spec'd.

BTW on page 2 of the instructions it clearly says you need to use adjustable rockers for cams with lift higher than stock.

ROCKER ARMS AND VALVE TRAIN: Adjustable rocker arms must be used with cams having greater than stock valve lift. We recommend original equipment or aftermarket adjustable rocker arm assemblies, along with matching pushrods (stock length, 7.375").