These pushrods allow converting to the superior Chevy oiling system. Oil flow is directed through the lifter top cap up through the pushrod and lubricates the rocker arm to pushrod contact.
This reduces friction which aids engine cooling but more importantly gives additional lubrication for high rpm applications.
Tube diameter 5/16"
Rocker End Radius (std) 3/16"
Lifter cup radius 5/32"
Pushrods are supplied overlong with ends loose to allow shortening to suit your geometry requirements.