First small block Mopar build More than a little nervous

Thank you for the replies,

Yellow rose, I have read the articles you linked part of the reason my head is swimming. I have a adjustable push rod for checking the proper push rod length, as I understand it push rod length is critical since the stock rockers are non adjustable.

I will be using RHS LAX heads as soon as I can source the correct head bolt as it seems the correct ones are neither LA or Magnum style.

Where I am foggy is the correct step by step procedure for setting the valve train up with the proper lifter preload and ensuring the correct geometry throughout the rocker arm travel.

My cam is mild .477/.480 from my research the stock rocker system is more than capable in this lift range as long as push rod length is correct.

I do tend to overthink things, I am pretty handy with a wrench, however with a new system that I am not familiar with I like to have a tech manual of experienced oversight so those rookie "well now you know" moments are avoided.

The SBM is too pricey to learn from my mistakes and prefer to do things right so you only have to do them once.

It's really pretty easy with the stock valvetrain setup, as long as the valves are stock length. Also, make sure the valve stem heights are equal within .020" max. Bolt the rockers on the head with an adjustable pushrod in place, and the lifter on the heel of the lobe. Adjust to ZERO lash/preload. Remove rocker shaft, measure pushrod and add .040" to the measured length. Order pushrods at that length. If any of the preliminary checks are out of stock spec, you should probably give me a call.

The factory geometry should be really close in your case, unless of course the valve stem heights are off, ie longer valves.