Engine profile

Ford 429 Cobra Jet V8

Ford 385-series big-block · 429 cubic inches · Ford

429 Cobra Jet reference for the 1970 Ford Torino Cobra 429 Cobra Jet 1970 Ford Torino Cobra 429 Cobra Jet

Engine Summary

Manufacturer: Ford
Family: Ford 385-series big-block
Displacement: 429 cubic inches

Also Known As

429 Cobra Jet429 CJFord 429 Cobra Jet429 cu in Cobra JetC-code 429-4V CJJ-code 429-4V CJ Ram Air429 CJ-R429 Cobra Jet Ram Air429 Super Cobra Jet429 SCJSuper Cobra Jet 429429 Cobra Jet with Drag Pack429 SCJ Drag Pack429-4v Cobra Jet429 4V Cobra Jet Ram-Air V-8Cobra Jet 429429-4V CJ V-8429CJ-4V 385 Series V8C-code 429 Cobra JetJ-code 429 Cobra Jet Ram-Air

Identification reference

Engine Details

Source-backed component numbers, codes, stampings, and application notes.

Main-bearing webbing

Value: Stronger main-bearing webbing reported for the 429CJ compared with the standard 429 Thunderjet context
Application: 1971 429 Cobra Jet V8 shared engine context; not an individual-car authenticity marker without inspection
Type: block / specification
Car pages: 1971 Ford Torino GT 429 Cobra Jet

Sources: Fangs for the Memories - 1971 Ford Torino Cobra

429CJ camshaft type

Value: hotter hydraulic cam
Application: 429CJ engine family
Type: camshaft / specification
Car pages: 1970 Ford Torino Cobra 429 Cobra Jet

Sources: Ford Performance Techline: Engine History - 429/429CJ/429SCJ/429 BOSS/460

429CJ carburetor capacity description

Value: larger-CFM carburetor than base 429
Application: 429CJ engine family
Type: carburetor / specification
Car pages: 1970 Ford Torino Cobra 429 Cobra Jet

Sources: Ford Performance Techline: Engine History - 429/429CJ/429SCJ/429 BOSS/460

Carburetor type and airflow

Value: 700-CFM GM Rochester carburetor reported; specification table identifies a single Rochester four-barrel spread-bore carburetor
Application: 1971 429 Cobra Jet V8 shared engine specification; exact carburetor tag/list remains unresolved
Type: carburetor / specification
Car pages: 1971 Ford Torino GT 429 Cobra Jet

Sources: Fangs for the Memories - 1971 Ford Torino Cobra

429CJ cylinder-head port and valve description

Value: heads with bigger ports and valves than base 429
Application: 429CJ engine family
Type: cylinder head / specification
Car pages: 1970 Ford Torino Cobra 429 Cobra Jet

Sources: Ford Performance Techline: Engine History - 429/429CJ/429SCJ/429 BOSS/460

Valve sizes

Value: 2.24-inch intake valves and 1.72-inch exhaust valves reported
Application: 1971 429 Cobra Jet V8 shared engine specification; casting/date verification still required
Type: cylinder head / specification
Car pages: 1971 Ford Torino GT 429 Cobra Jet

Sources: Fangs for the Memories - 1971 Ford Torino Cobra

1970 429CJ main-bearing cap configuration

Value: 2-bolt mains
Application: 1970 429CJ engine family
Type: engine assembly / specification
Car pages: 1970 Ford Torino Cobra 429 Cobra Jet

Ford Performance distinguishes this from 1971 429CJ and 429SCJ main-cap configurations.

Sources: Ford Performance Techline: Engine History - 429/429CJ/429SCJ/429 BOSS/460

Advertised horsepower

Value: 370 hp at 5,600 rpm
Application: Hemmings specification table for a 1971 Torino Cobra 429CJ; shared 429CJ context, not Torino GT individual-car proof
Type: engine assembly / specification
Car pages: 1971 Ford Torino GT 429 Cobra Jet

Sources: Fangs for the Memories - 1971 Ford Torino Cobra

Advertised torque

Value: 450 lb-ft at 3,400 rpm
Application: Hemmings specification table for a 1971 Torino Cobra 429CJ; shared 429CJ context, not Torino GT individual-car proof
Type: engine assembly / specification
Car pages: 1971 Ford Torino GT 429 Cobra Jet

Sources: Fangs for the Memories - 1971 Ford Torino Cobra

Bore and stroke

Value: 4.36-inch bore and 3.59-inch stroke
Application: 1971 429 Cobra Jet V8 shared engine specification; not individual-car proof
Type: engine assembly / specification
Car pages: 1971 Ford Torino GT 429 Cobra Jet

Sources: Fangs for the Memories - 1971 Ford Torino Cobra

Compression ratio

Value: 11.3:1
Application: 1971 429 Cobra Jet V8 shared engine specification; not individual-car proof
Type: engine assembly / specification
Car pages: 1971 Ford Torino GT 429 Cobra Jet

Sources: Fangs for the Memories - 1971 Ford Torino Cobra

Engine family and construction

Value: Ford 385-series OHV V-8 with cast-iron block and cast-iron cylinder heads
Application: 1971 429 Cobra Jet V8 shared engine specification; not individual-car proof
Type: engine assembly / specification
Car pages: 1971 Ford Torino GT 429 Cobra Jet

Sources: Fangs for the Memories - 1971 Ford Torino Cobra

Exhaust manifold material/type

Value: Dual exhaust with cast-iron manifolds reported as stock
Application: Hemmings specification table for a 1971 Torino Cobra 429CJ; shared 429CJ context, not Torino GT individual-car proof
Type: exhaust manifold / specification
Car pages: 1971 Ford Torino GT 429 Cobra Jet

Sources: Fangs for the Memories - 1971 Ford Torino Cobra

Fuel pump type

Value: Mechanical fuel pump
Application: Hemmings specification table for a 1971 Torino Cobra 429CJ; shared 429CJ context, not Torino GT individual-car proof
Type: fuel pump / specification
Car pages: 1971 Ford Torino GT 429 Cobra Jet

Sources: Fangs for the Memories - 1971 Ford Torino Cobra

Lifter type

Value: Hydraulic lifters
Application: Hemmings specification table for a 1971 Torino Cobra 429CJ; shared 429CJ context, not Torino GT individual-car proof
Type: valve train / specification
Car pages: 1971 Ford Torino GT 429 Cobra Jet

Sources: Fangs for the Memories - 1971 Ford Torino Cobra