Engine Summary
- Manufacturer
- Chevrolet
- Family
- Chevrolet W-series big-block V8
- Displacement
- 427 cubic inches
Also Known As
Z11 4271963 Chevrolet Z11 engine1963 Chevrolet 427 W-engineRPO Z11 engineQM 427
Engine profile
Chevrolet Z11 427 W-series V8
Chevrolet W-series big-block V8 · 427 cubic inches · Chevrolet
Identification reference
Engine Details
Source-backed component numbers, codes, stampings, and application notes.
Cowl induction
- Value
- 6418986 air cleaner and 3839764 duct
- Application
- Z11 cowl-fed induction
- Type
- air cleaner / part number
- Car pages
- 1963 Chevrolet Impala Z11 427
Sources: Chevrolet's 1963 Z-11 Impala
Block casting
- Value
- 3830814
- Application
- Z11 production engine context
- Type
- block / casting number
- Car pages
- 1963 Chevrolet Impala Z11 427
Sources: Chevrolet's 1963 Z-11 Impala
Mechanical camshaft
- Value
- 3837736; 0.556-inch lift, 325-degree duration
- Application
- Z11 engine
- Type
- camshaft / part number
- Car pages
- 1963 Chevrolet Impala Z11 427
Sources: Chevrolet's 1963 Z-11 Impala , This 1963 Chevrolet Impala Z11 is a Rare Bird and a Drag Strip Showoff
Carburetion
- Value
- Two Carter AFB four-barrel carburetors
- Application
- Z11 dual-quad induction
- Type
- carburetor / specification
- Car pages
- 1963 Chevrolet Impala Z11 427
Sources: Chevrolet's 1963 Z-11 Impala , This 1963 Chevrolet Impala Z11 is a Rare Bird and a Drag Strip Showoff
Cylinder head casting
- Value
- 3837731
- Application
- Z11 engine
- Type
- cylinder head / casting number
- Car pages
- 1963 Chevrolet Impala Z11 427
Sources: Chevrolet's 1963 Z-11 Impala
Bore and stroke
- Value
- 4.3125 x 3.65 inches
- Application
- 427 CID Z11 W-series engine
- Type
- engine assembly / specification
- Car pages
- 1963 Chevrolet Impala Z11 427
Sources: Chevrolet's 1963 Z-11 Impala , This 1963 Chevrolet Impala Z11 is a Rare Bird and a Drag Strip Showoff
Engine suffix
- Value
- QM
- Application
- Z11 production engine context
- Type
- engine assembly / assembly code
- Car pages
- 1963 Chevrolet Impala Z11 427
Sources: Chevrolet's 1963 Z-11 Impala
Two-piece intake
- Value
- 3830623 upper and 3837733 lower
- Application
- Z11 dual-quad induction
- Type
- intake manifold / part number
- Car pages
- 1963 Chevrolet Impala Z11 427
Sources: Chevrolet's 1963 Z-11 Impala
Compression ratio
- Value
- 13.5:1
- Application
- Z11 engine
- Type
- piston / specification
- Car pages
- 1963 Chevrolet Impala Z11 427
Sources: Chevrolet's 1963 Z-11 Impala , This 1963 Chevrolet Impala Z11 is a Rare Bird and a Drag Strip Showoff
Cars Using This Engine
1 linked car page.
Impala two-door Sport Coupe
1963 Chevrolet Impala Z11 427
RPO Z11 lightweight drag equipment