Engine Summary
- Manufacturer
- Packard
- Family
- Packard V8
- Displacement
- 374 cubic inches
Also Known As
1956 Caribbean 3745688 Packard 374310-hp Packard 374 dual quad
Engine profile
1956 Packard Caribbean 374 V8
Packard V8 · 374 cubic inches · Packard
Identification reference
Engine Details
Source-backed component numbers, codes, stampings, and application notes.
Dual Rochester 4GC induction
- Value
- models 7009600 and 7009601; Packard part numbers 6489090 and 6489091
- Application
- Caribbean series 5688
- Type
- carburetor / carburetor list
- Car pages
- 1956 Packard Caribbean 374 Dual-Quad
Sources: 1956 Packard Cars Fact Sheet , 1956 Packard Deluxe Sales Brochure , Packard Reference Data
Bore and stroke
- Value
- 4.125 x 3.50 inches
- Application
- Packard 374
- Type
- engine assembly / specification
- Car pages
- 1956 Packard Caribbean 374 Dual-Quad
Sources: 1955-1956 Packard OHV V-8 Described , 1956 Packard AMA Consolidated Specification Questionnaire , 1956 Packard Cars Fact Sheet , 1956 Packard Deluxe Sales Brochure , Packard Reference Data
Compression ratio
- Value
- 10.0:1
- Application
- Caribbean series 5688
- Type
- engine assembly / specification
- Car pages
- 1956 Packard Caribbean 374 Dual-Quad
Sources: 1955-1956 Packard OHV V-8 Described , 1956 Packard AMA Consolidated Specification Questionnaire , 1956 Packard Cars Fact Sheet , 1956 Packard Deluxe Sales Brochure , Packard Reference Data
Factory output
- Value
- 310 gross hp at 4,800 rpm and 405 lb-ft at 2,800 rpm
- Application
- Caribbean series 5688
- Type
- engine assembly / specification
- Car pages
- 1956 Packard Caribbean 374 Dual-Quad
Sources: 1955-1956 Packard OHV V-8 Described , 1956 Packard AMA Consolidated Specification Questionnaire , 1956 Packard Cars Fact Sheet , 1956 Packard Deluxe Sales Brochure , Packard Reference Data
Exhaust
- Value
- dual exhaust with reverse-flow muffler and resonator in each line
- Application
- standard
- Type
- other / specification
- Car pages
- 1956 Packard Caribbean 374 Dual-Quad
Sources: 1956 Packard AMA Consolidated Specification Questionnaire , 1956 Packard Deluxe Sales Brochure
Cars Using This Engine
1 linked car page.
series 5688 six-passenger two-door custom hardtop (5697) or custom convertible (5699)
1956 Packard Caribbean 374 Dual-Quad
5697 hardtop and 5699 convertible