The 455 will fit. The transmission might have a shorter tailshaft, though.
Yes, it is possible to drop a 455 engine into an 1988 Oldsmobile Toronado Trofeo, but it may require modifications to fit properly. A compatible transmission option would be the TH400 or a 200-4R transmission, which can handle the power of the 455 engine.
No. they are different head designs.
what transmission fits a 455 oldsmobile motor
The 455 and 400 was an option motor in the 1972 Pontiac LeMans, yes it will fit. I'm not sure if a beefier tranny was also included?
why a 427?, why not an olds 455?, it will fit but your going to have to change a lot of things like special motor mounts and a different transmission and you will need to get another driveshaft made.
unfit 455
Chevy, Buick and Cadillac shared the same bolt pattern as did Oldsmobile and Pontiac but, some transmissions had two bolt patterns to fit all GM blocks. If your Chevy Turbo 350 transmission has the dual pattern it will fit the Oldsmobile engine, if not it won't fit.
Yes
No
sure y not
no