Am I ok with this? KB107 in La block

Chadderbox70 said
I have a 360 La block. (Factory crank and rods , resized and balanced)

I have begun installing my kb107 pistons and I notice the first one number 1 is almost flush with the deck.
The number 2 piston actually sticks up.
(I'm not exactly sure my written numbers on them are accurate with a feeler gauge at home)

Should I do the others to see more, or quit right here, I called the machine shop and they told me ,I can pay more to have it resurfaced again, just depends on how blue printed I want it to be.

Second question is if I am out of the hole , am I am to use my fel pro 1008 head gaskets with the factory J open chamber heads?

Thanks

View attachment 1716134641

View attachment 1716134642

View attachment 1716134643

View attachment 1716134644

So is your +.023 above or below the deck. Normally a + deck height is below the deck surface and - is above the deck surface.
I would install all the piston/rod assemblies without rings after using a piston stop and degree wheel, so that true TDC is determined for each piston. Running mates should be able to be measured at the same time.
There is something wrong if you have the crank at TDC and measure your deck heights and find that much variance. A couple of thousandths would be acceptable but 0.043" is way to much.
What is the compressed thickness of that head gasket? DV has mentioned running the pistons 0.005" above the deck with a 0.035" compressed gasket for a tight quench promoting good mixture motion. That mixture motion promotes efficient burn and detonation tollerance. But that requires all the pistons to be the same height. Without even deck heights you will never get the engine to run its best.
You should measure each piston for deck height, each rod for center to center length and the crank throws for stroke. If 1 and 2 deck heights are very close above the deck and 5 and 6 are very close below the deck, suspect the crank and probably the machine shop if it was ground.