mellings pushrod for magnum heads?

I ended up with Comp Cams rods that are 7.70 The stock Mopar conversion rods at best gave me .015 of lifter preload and was noisey. I used the .024-.028 Mopar head gaskets. If anyone wants a set of 31 Mopar conversion pushrods...$30 shipped and you can't ask what happened to #32!!!!

The PN is 7823-16. They're for a Ford. $48. thru Summit. Lifter preload should be .060" I referenced these tech articles:

Lifter preload http://www.keitheickert.com/tech_support/Adjusting_The_Valve_Train.pdf

Pushrod length http://www.keitheickert.com/tech_support/Pushrod_Length.pdf