Engine Summary
- Manufacturer
- Oldsmobile
- Family
- Oldsmobile Rocket big-block
- Displacement
- 455 cubic inches
Also Known As
1973 Oldsmobile L77 4551973 Oldsmobile V-code 4551973 Cutlass 455 four-speed1973 270-hp Oldsmobile 455
Engine profile
1973 Oldsmobile L77 455 V8
Oldsmobile Rocket big-block · 455 cubic inches · Oldsmobile
Identification reference
Engine Details
Source-backed component numbers, codes, stampings, and application notes.
Induction and exhaust
- Value
- Rochester Quadrajet four-barrel with dual exhaust
- Application
- 1973 L77 455
- Type
- carburetor / specification
- Car pages
- 1973 Oldsmobile Cutlass 442 L77 455
Sources: 1973 Oldsmobile Cutlass brochure and specifications , Reinventing the Steel: 1973 Oldsmobile Cutlass Supreme
Bore, stroke, and compression
- Value
- 4.13 x 4.25 inches; 8.5:1 compression
- Application
- 1973 L77 455
- Type
- engine assembly / specification
- Car pages
- 1973 Oldsmobile Cutlass 442 L77 455
Sources: Olds FAQ: 455 CID engine detail , Reinventing the Steel: 1973 Oldsmobile Cutlass Supreme
Factory output
- Value
- 270 hp SAE net at 4,200 rpm and 370 lb-ft at 3,200 rpm
- Application
- 1973 L77/V-code 455
- Type
- engine assembly / specification
- Car pages
- 1973 Oldsmobile Cutlass 442 L77 455
Sources: 1973 Oldsmobile Cutlass brochure and specifications , Reinventing the Steel: 1973 Oldsmobile Cutlass Supreme
VIN engine code
- Value
- V
- Application
- 1973 Cutlass L77 455
- Type
- engine assembly / stamp
- Location
- fifth character of the vehicle identification number
- Car pages
- 1973 Oldsmobile Cutlass 442 L77 455
Sources: 1973 Oldsmobile VIN decoding , Reinventing the Steel: 1973 Oldsmobile Cutlass Supreme
Cars Using This Engine
1 linked car page.
Cutlass or Cutlass S two-door Colonnade coupe with W29 4-4-2 package
1973 Oldsmobile Cutlass 442 L77 455
W29 4-4-2 appearance and handling package