its not a 350, no matter what you say, this block will twist when the crank comes out, its not a simple tear it down, clean it up with new bearings and run with it rebuild.

it needs machine work or its a fail from the start.

jamesivey here had a shop re build his, it lasted all of 50 feet. same deal, thats what they do all day, rebuild engines.

so whats the friend price for a rebuild at your place there? everyone seem to be charged over 2 grand.

hell one guy who had the shop work done, then re built it himself with his dad, it cost him 2500, his own labor thats shop and parts cost only. lucky for that guy, hes one of the few we know of that are still running strong.