Pmeeeeee

Anybody know?

I have a 7.4 chevy engine It is part# 19207556. Anyone have detailed specs available for it? Thanks

I bought a taken apart gen vi 454 L21 vortec engine block, crank, n rods/pistons. The guy who took it apart didn't label what cylinder rods/pistons came out of. The rods/pistons are still assembled together but how do I tell what cylinder each came out of? There are many factory marks on inside of pistons but nothing obvious (to me). On the rod cap sides(both upper n lower)they have unique stamping marks.They are: T053 V028 V272 X225 M029 L290 X254 L147 What does the stamping mean? Hopefully that translates to a certain cylinder or something. Thanks for your help!