My 72 K10 4x4

[gmc684x4]

My dads Truck 72 K10 with 70 xxx original miles on it last time it was driving would have been in 85 helped my dad put an old 350 into it
I was aiming for a budget rebuilt engine for her
We went through 8 blocks I had
The one from the truck I got from carlsbad NM had 75 Thou wear on it. Out of 8 one was ok to rebore machine shop tanked and bore it out when I came to pick it up I asked did he flux the block first
The Lifter valley cracked from front to back ....

Started to piece together a new gm roller block eagle rotating assembly vortech head Comp cam roller 4x4 cam vortec performer intake and carb