Engine Summary
- Manufacturer
- Buick
- Family
- Buick Nailhead V8
- Displacement
- 425 cubic inches
Also Known As
1966 MW 4251966 Riviera 4251966 Wildcat 465
Engine profile
1966 Buick 425 Wildcat V8
Buick Nailhead V8 · 425 cubic inches · Buick
Identification reference
Engine Details
Source-backed component numbers, codes, stampings, and application notes.
Dealer Super Wildcat conversion
- Value
- dual Carter four-barrels and related equipment, 360 gross hp
- Application
- dealer-installed optional upgrade; not standard GS content
- Type
- carburetor / specification
- Car pages
- 1966 Buick Riviera Gran Sport
Sources: 1966 Buick Riviera Gran Sport valuation and model guide , Personal Luxury Powerhouse: 1966 Buick Riviera GS
MW 425
- Value
- 425 CID, single Quadrajet, 10.25:1 compression, 340 gross hp and 465 lb-ft
- Application
- standard in base and Gran Sport Rivieras
- Type
- engine assembly / specification
- Car pages
- 1966 Buick Riviera Gran Sport
Sources: 1966 Buick Chassis Service Manual , 1966-1969 Riviera Gran Sport identification , Personal Luxury Powerhouse: 1966 Buick Riviera GS
Cars Using This Engine
1 linked car page.
two-door fastback sport coupe
1966 Buick Riviera Gran Sport
MW 425, 340 gross hp