Engine Summary
- Manufacturer
- Studebaker; Paxton Products on R2
- Family
- Studebaker V-8
- Displacement
- 289 cubic inches
Also Known As
Avanti R1 289Avanti R2 289Jet Thrust R1Jet Thrust R2R-series 289RS-series 289
Engine profile
Studebaker Avanti R1 and R2 289 V8 range
Studebaker V-8 · 289 cubic inches · Studebaker; Paxton Products on R2
Identification reference
Engine Details
Source-backed component numbers, codes, stampings, and application notes.
R1 and R2 shared engine architecture
- Value
- 289 cu in overhead-valve V8; 3-9/16 x 3-5/8 in bore and stroke; cast-iron block and cylinder heads; no cylinder sleeves
- Application
- 1963 Avanti 63R and 63R Supercharged
- Type
- block / specification
- Car pages
- 1963 Studebaker Avanti
Sources: 1963 Studebaker Avanti R1 and R2 AMA specifications
R1 carburetion
- Value
- Carter AFB 3506S four-barrel
- Application
- R1
- Type
- carburetor / specification
- Car pages
- 1963 Studebaker Avanti
Sources: 1963 Studebaker Avanti fact sheet , 1963 Studebaker Avanti R1 and R2 AMA specifications
R1 carburetor throttle bores
- Value
- 1-7/16 in primary and 1-11/16 in secondary
- Application
- Carter AFB 3506S on 1963 Avanti 63R
- Type
- carburetor / specification
- Car pages
- 1963 Studebaker Avanti
Sources: 1963 Studebaker Avanti R1 and R2 AMA specifications
R2 carburetion
- Value
- Carter AFB 3507S four-barrel in a pressure enclosure
- Application
- R2
- Type
- carburetor / specification
- Car pages
- 1963 Studebaker Avanti
Sources: 1963 Studebaker Avanti R1 and R2 AMA specifications , 1963 Studebaker Avanti R2 road research report
R2 carburetor throttle bores
- Value
- 1-7/16 in primary and 1-11/16 in secondary
- Application
- Carter AFB 3507S on 1963 Avanti 63R Supercharged
- Type
- carburetor / specification
- Car pages
- 1963 Studebaker Avanti
Sources: 1963 Studebaker Avanti R1 and R2 AMA specifications
AMA output fields
- Value
- Published maximum brake horsepower and maximum torque are both recorded as N.A. on the revised factory AMA form
- Application
- 1963 Avanti 63R and 63R Supercharged; advertised R1/R2 horsepower ratings are sourced separately
- Type
- engine assembly / specification
- Car pages
- 1963 Studebaker Avanti
Sources: 1963 Studebaker Avanti R1 and R2 AMA specifications
Engine-number location
- Value
- Left front top of the cylinder block
- Application
- 1963 Avanti 63R and 63R Supercharged
- Type
- engine assembly / stamp
- Car pages
- 1963 Studebaker Avanti
Sources: 1963 Studebaker Avanti R1 and R2 AMA specifications , Studebaker V-8 engine identification
Later engine-number format
- Value
- R or RS followed by a letter and three digits
- Application
- effective August 20, 1963; production order must establish application
- Type
- engine assembly / date code
- Car pages
- 1963 Studebaker Avanti
Sources: Research your Studebaker , Studebaker V-8 engine identification
R1 engine-number prefix
- Value
- R-series beginning at R-1001
- Application
- cars built before the August 1963 date-code transition
- Type
- engine assembly / stamp
- Car pages
- 1963 Studebaker Avanti
Sources: Research your Studebaker , Studebaker V-8 engine identification
R1 naturally aspirated 289
- Value
- 240 gross hp at 5,000 rpm; 10.25:1 compression
- Application
- standard 1963 Avanti engine
- Type
- engine assembly / specification
- Car pages
- 1963 Studebaker Avanti
Sources: 1963 Studebaker Avanti fact sheet , 1963 Studebaker Avanti R1 and R2 AMA specifications , 1963 Studebaker Avanti sales brochure
R2 engine-number prefix
- Value
- RS-series beginning at RS-1001
- Application
- cars built before the August 1963 date-code transition
- Type
- engine assembly / stamp
- Car pages
- 1963 Studebaker Avanti
Sources: Research your Studebaker , Studebaker V-8 engine identification
R2 supercharged 289
- Value
- 289 gross hp at 4,800 rpm; 9.0:1 compression
- Application
- optional 1963 Avanti engine
- Type
- engine assembly / specification
- Car pages
- 1963 Studebaker Avanti
Sources: 1963 Studebaker Avanti fact sheet , 1963 Studebaker Avanti R1 and R2 AMA specifications , 1963 Studebaker Avanti R2 road research report
R2 supercharger
- Value
- Paxton SN60 centrifugal supercharger with pressure-enclosed induction
- Application
- R2
- Type
- other / specification
- Car pages
- 1963 Studebaker Avanti
Sources: 1963 Studebaker Avanti fact sheet , 1963 Studebaker Avanti R1 and R2 AMA specifications , 1963 Studebaker Avanti R2 road research report
Cars Using This Engine
1 linked car page.
63R-Q four-passenger two-door coupe
1963 Studebaker Avanti
63R-Q four-passenger fiberglass coupe