Durability of stock turbo??
 

So if I get my stock turbo rebuilt with a 360* thrust plate and new guts and billet wheels, what am I looking at durability wise out of the turbo? Wanting to twin it with my 63/83. I've had a few people tell me the factory turbo can't take a lot of punishment. What say ye?

Retire the stocker and run the 63 problem solved!

that 63 may take a take a secong to spool ehh? a lot of company's use the stocker with twin setups but honestly a small upgrade would help immensely I'm more than happy with my borg warner sx-e 64.5/68 . the stocker is definitely not worth building please don't waste your money ,put it towards something that will actually help.

Good lubrication is the biggest factor affecting the durability of ANY turbo.