455 horsepower
A 1974 Oldsmobile 455 V8 has horsepower of 275 to 400. The Oldsmobile 455 was last produced in the year of 1975.
350,400 or 455
The 1987 Trans Am didn't have a 455
225 / 250 / 270 / 300 horsepower ( 4 versions of the Oldsmobile 455 - 4 barrel carburetor - listed in 1972 )
Horsepower TV - 2006 Building an Olds 455 was released on: USA: April 2009
There are many ways to increase the 455 horsepower. With a cam/valve train swap and working over the heads (or replacing with aftermarket) you can be in the 500+ range. "Pontiac High Performance" is a great source for information on engine modifications.
225 horsepower - UA engine code or 250 horsepower - UD engine code
The 1968 Oldsmobile Toronado is equipped with a 7.5-liter (455 cubic inch) V8 engine that produces approximately 375 horsepower. This powerful engine was notable for its innovative front-wheel-drive layout, making the Toronado a unique vehicle for its time. The combination of its horsepower and design contributed to its reputation as a high-performance automobile.
You need to specify which model Caterpillar motor you have. 455 is just a horsepower rating - several models were available with a 455 horsepower rating, to include the 3406B, 3406E, C12, C13, and C15.
250
Oldsmobile stopped production of the 455 in 1976. There were no 455s produced in 1987.