yeah I run my E8500 (FSB1333) at FSB 1840.
Edit: although just realised your sig says 4Ghz so you probably knew that, if your question is regarding stock voltages, then I'd say it's very likely, on the E8500 I went from FSB1333 to ~FSB1600 on auto. You'd want to watch heat on a stock heatsink though. You will be (at 4Ghz) running FSB1454ish which is 363Mhz x 4.
The FSB number/spec always being 4 times the actual FSB clock speed on these chips.