If by the same, you mean the same procedure, then yes, it does, since they are both the same core and architecture.
However, if you mean the same limits and results then no, since the 3000+ nor the 3500+ has a documented "pattern" as far as overclocking results go. Each chip varies based on week and stepping number, as well as fab location. And even then, individual chips are all different and have different limits.
Since I've basically answered your question however you look at it, and if you have asked for the latter answer, I will lock this since no one can answer this question accurately apart from "it's 1% skill and 99% luck"
Intel C2D E6320 / AMD Athlon X2 3800+
Gigabyte 965P DS3 / DFI nF4 Ultra-D
2GB OCZ Gold PC2-6400 / 2GB OCZ Gold PC4000
eVGA 8800GTS 320MB / eVGA 6800GS 256MB
150GB Raptor / 74GB Raptor
2x500GB / 320GB
OCZ GameXStreme 850w / OCZ StealthXStream 600w