I would guesstimate (without exhaust manifolds) 350 lbs.
that depends on which engine. a small block like a 327 would be around 400 pounds. a big block like the 454 would be around 550
ATF
Auto Zone? Hemmings Motor News?
Conventional 10w-30 weight
modifcation of the mounts is likely needed
No they are not. 1968 fenders are different than 1965, 66 or 67. The side marker lamps are different. Take a look at a picture of a 1968 cadillac and a 1967 cadillac to see the differences.
NO.
They told me 250 lb. when I shipped mine. I can tell you it is heavy! Craig
Yes
yes.
The curb weight of the 2009 Cadillac CTS is 3861 lbs..
The curb weight of the 2012 Cadillac SRX is 4277 lbs..
The curb weight of the 2004 Cadillac CTS is 3509 lbs..