I've heard that John Little over-dubbed his original voice.
The scene with the Shaolin monk with orange clothes exists with his original voice but they didn't use it.
Have no idea why.
Do you know anything about that gossip or fact?
Here is Bruce's actual voice. It sounds totally different than John Little's dub.
http://www.youtube.com/watch?v=FSv5Me6yq9c
I believe it is for several reasons.
1. This scene was left on the cutting room floor for the original release. It wasn't until the more recent anniversary editions that it was restored as "new footage".
2. Although ETD was an American-HK coproduction, they used many HK film techniques including filming without sound known in the filmmaking as M.O.S. (Motor Only Synch, or more colloquially as Mute On Sound). That is they do not have a sound engineer recording sound so the actors have to go back in post-production to re-record their lines. This is why even the English speaking actors' voices often don't synch and match in ETD.
I recall an interview with director Robert Clouse where he said it frustrated him because the HK film crews were very disruptive and loud since they are used to filming without sound.
Since this was a deleted scene in the original it is doubtful Bruce Lee would have recorded the original voiceover. TRIVIA: it was during post-production while editing that he fainted which may have been a foreshadowing of an underlying problem which may have contributed to his death.
3. People with keen ears can tell that the voiceover actor's voice for that scene is different from Bruce Lee's. It's close but sounds much more nasally and the octave is off.