Engine Summary
- Manufacturer
- Oldsmobile
- Family
- Oldsmobile Rocket small-block
- Displacement
- 350 cubic inches
Also Known As
1970 Oldsmobile L74 350 V8Oldsmobile L74 350 Rocket V81970 Rallye 350 L74 engineL74 350-cu-in Rocket V8
Engine profile
1970 Oldsmobile L74 350 Rocket V8
Oldsmobile Rocket small-block · 350 cubic inches · Oldsmobile
Identification reference
Engine Details
Source-backed component numbers, codes, stampings, and application notes.
Rochester Quadrajet 4MV four-barrel carburetor
- Value
- single four-barrel 4MV Rochester Quadrajet
- Application
- 1970 Oldsmobile Rallye 350 L74 350-cu-in V-8
- Type
- carburetor / specification
- Car pages
- 1970 Oldsmobile Rallye 350
Cylinder-head cast marker
- Value
- 6
- Application
- 1970 Oldsmobile Rallye 350 L74 350-cu-in V-8
- Type
- cylinder head / other
- Location
- left front and right rear of the cylinder-head castings
- Car pages
- 1970 Oldsmobile Rallye 350
Hemmings reports the cylinder heads should carry this cast marker; this is not a complete casting-number or date-code rule.
Compression ratio
- Value
- 10.25:1
- Application
- 1970 Oldsmobile Rallye 350 L74 350-cu-in V-8
- Type
- engine assembly / specification
- Car pages
- 1970 Oldsmobile Rallye 350
Factory horsepower rating
- Value
- 310 hp gross
- Application
- 1970 Oldsmobile Rallye 350 L74 350-cu-in V-8
- Type
- engine assembly / specification
- Car pages
- 1970 Oldsmobile Rallye 350
Factory torque rating
- Value
- 390 lb-ft at 3,200 rpm gross
- Application
- 1970 Oldsmobile Rallye 350 L74 350-cu-in V-8
- Type
- engine assembly / specification
- Car pages
- 1970 Oldsmobile Rallye 350
Cars Using This Engine
1 linked car page.
Two-door F-85 or Cutlass S coupe
1970 Oldsmobile Rallye 350
W45 Rallye 350 Appearance/Rallye 350 option