L-88 crate short block 3970699 new, motion correct?

[Parts4race351]

I have a nos l88 short block part number 3970699 Would this be a correct replacement short block for a motion car?
I have a guy that offered me 6k for it , so what I’m asking is would it be correct for a tribute motion car or should I just build one from scratch?
Thank you
I also have a late 68 512 casting 427 that needs to be freshened but is complete so m not really sure what one is more correct and which one I should sell

[LT1vette]

What is the fourth line into the carb "y" block for?

[169indy]

^^I would Guess a Day 2 exterior cowl mounted Fuel pressure gauge?

[JoeC]

Does the NOS L-88 crate have a date on it?

I would think that is a NOS L-88 is a valuable item to keep intact with the crate

[markjohnson]

These crate L88’s were available well into the ‘80’s in short block form but were pretty expensive. An LS6/7 long block could be had for cheaper than the L88 short block but they were great donors for anybody needing a new reciprocating assembly for a ZL1 block.

[turbojet427]

I have a "fitted" L88 short block dated 4/69. The bearings, pistons, rings are all in the block and fitted. The crank and 10 (yes 10) balanced rods are separate in their own box

[turbojet427]

Pic

[lbnaz]

Picture of the side of the crate sitting on my shelf that my L88 was in. I bought it in the 80's. I took it to a local speed shop years ago to have freshened up before installing it in my 55. It was missing a C clip holding in one of the wrist pins in one cylinder. That wouldn't have been pretty.