Re: Need Advice: is Original 327 the way to go?
IS the 350 disassembled? Did your stepdad review detailed invoices for the rebuild? I don't know too many guys who can look at the exterior of an assembled engine and say that junk parts were used. If it is leaking like the Exxon Valdez, or running really poorly and blowing smoke, then I can see someone drawing a conclusion about a rebuild.
But if it runs okay, you may be getting bad advice and worrying for no reason.
Big block is a big change, fairly involved, and a lot more expensive. There are no general reliability issues with a big block; any well built engine operated as intended will perform and last as intended.
In other words, any mild small block or big block that is taken care of and not abused will last a long time. On the other hand, if you take a mild engine with stock valvetrain and rev tune it regularly, floating the valves, you're probably going to have a problem pretty quick.
So, do was the assessment that the engine in it now is junk actually based on anything?
Also, is the 327 complete or disassembled, and has it been checked and verified as useable? For example, if the 327 is already 0.060 inch overbored, or the block is cracked, or a cylinder(s) is badly damaged, then it may not be useable. On the other hand, if it has never been bored or rebuilt, and was just removed because the PO wanted a 350, then the 327 could be a good candidate for a rebuild.
I had a 327 (not the original) in my 68 when I bought it. I rebuilt it with an 0.030 inch overbore, new 0.030 pistons, turned the OE crank, and installed a Summit cam kit equivalent to the Edelbrock Performer. With a Performer intake and a 650 spreadbore Holley plus a GM HEI, it ran great and was super reliable as a driver. If you search using "327" here, there are many threads about how to build the mild, reliable engine your looking for.
But first make sure you actually need to be worrying about it...
69 'vert project big block/TKO 600 RR
68 'vert driver RS clone -- gone!