No, they are not the same engine. The Oldsmobile 455 had a bore and stroke of: 4.126 X 4.25 The Pontiac 455 had a bore and stroke of: 4.152 X 4.21
No, they are completely different.
yes if you have the Oldsmobile motor mounts. If you are asking if engine parts will interchange....Absolutely not.
Same block, should fir right in
Sure it will. Pontiac used the same block for all of it's 326 to 455 engines.
A 1974 Oldsmobile 455 V8 has horsepower of 275 to 400. The Oldsmobile 455 was last produced in the year of 1975.
How do you set distubitor timing on pontiac 455?
Oldsmobile stopped production of the 455 in 1976. There were no 455s produced in 1987.
yes
No. they are different head designs.
The 455 will fit. The transmission might have a shorter tailshaft, though.
Yes, you didn't say which brand (Pontiac, buick, oldsmobile?) All are different but all have potential.
400lbs