if i have an LT1
using a probe 400 steel crank
and got 6. rods light weight I beam rods
forged probe pistons
what all do i have to do or will or another route be better

 

Have to do for what?????
If ya get the complete Probe kit it comes with everything crank,rods,pistons,pins,rings and bearings. Ya can upgrade any item.

 

Im using the Probe stuff for my new 355, and used it on my last 383. They make good stuff, but stay away from their cheaper forged rods, stock is pretty equivalent in my book.

I got a SCAT 4340 crank, lightweight forged rods, and their SRS pistons. Good luck also with the crank.. I tried using the same one you have on my last 383 and it couldn't be internally balanced in the rear, so they got me a comprable SCAT which worked fine, so if thats what you want to do, look into the SCAT cranks instead.

Good luck... oh and pics of my motor are at http://64.81.235.236/motor