Yes, I think it's the same 1UZ-FE as on the LS400. www.lexls.com has a good tutorial on this, under "engine mechanical".
I don't think there are any strange tools that you need. A torque wrench, of course. A harmonic balancer pulley remover to pull the crankshaft pulley.
There are some kits on ebay, do a search on "sc400 timing belt"
I have about 180k miles on my LS400 and will be doing mine in about 20k miles. I'll probably replace:
Timing belt
Water pump
Idler pulleys #1 and #2
Timing belt tensioner and pulley
Coils (only because mine are original)
Distributors
Rotors
I just did the sparkplugs and wires, or else would do these as well
Maybe crankshaft and camshaft seals?
Serpentine (drive) belt
...but if you're only at 46000mi (or km?) then I don't think you would need to touch it for awhile!
...so, which is faster, the SC400 or the TGV? :P
Bonne chance-
Rob
Thank you Rob,
Your listing is about the same I've done. TGV is much faster than the SC 400, but the pleasure is 20 times bigger in the SC 400.
Merci encore et à bientôt
Bodivo