250 inline six

[rollin thunder]

Hey everyone. I am going to get a 250 l6 long block to replace original motor and just reuse tinwork and what not from old engine and i was considering the part store Autozone or orielly`s seeing as its more cost effective and only place nearby to get motors. unless order them online. But i don`t know if its worth getting them what are they like? anyone know how good these motors are? etc... thanks in advance and if you have advice for break in period feel free to share! really looming marshall 250 with integrated head from autozone its cheaper and orielly`s doesnt have integrated head