Im gonna chime in here as I have on every thread like this in the past 3 yars.
Advance Auto/Autozone/O'Reilly/PepBoys WILL sell some junk.
2 things I have seen, a 350 .030 on 7 and .095 on 1, and a crankshaft balancer bolt hole that was heli-coiled, poorly.
That said their prices are half Jaspers. And their warranty is better. 2 years unlimited miles no questions asked, and thy will pay for labor. IF and ONLY IF it is bought by a commercial account. All you have to do to get a commercial account is ask for one., They do have a set fee (which was $750 for a mid 80s C10 truck) which isnt top dollar, but certainly acceptable.
I ran an Advance motor for 80k miles and then sold the truck and its still running today.
As to SBC and bores, I have ran a .095 that had no issue, if a quality machine shop did the work I would not think twice about a .080.
BUT if it is a GM motor, its kinda hard to beat the new GM crate motors, better warranty (3 years compared to 2) a little more $$$ (about the same as Jasper actually, if you negotiate a bit) and it is NEW.
All that said from what Ive heard I wouldn't hesitate sending anything to CPerry
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