Morel now has a link bar .904" diameter solid roller lifter. With a .850" diameter wheel and a 30% larger axle you have greater load bearing by the lifter. This increases the stability of the valvetrain at high rpm.

This lifter is available from your LS1 Tech sponsors that carry Morel.

 

I'm guessing the axle is 30% larger in circumference or diameter, not length?