Engine profile

1971 Ford Ranchero engine family

Ford 250 inline-six, small-block 302 and 351 V8, and 385-series 429 Cobra Jet V8 · 429 cubic inches · Ford

Engines and Induction summarized from reviewed factory and marque references. 1971 Ford Ranchero

Engine Summary

Manufacturer: Ford
Family: Ford 250 inline-six, small-block 302 and 351 V8, and 385-series 429 Cobra Jet V8
Displacement: 429 cubic inches

1971 250 inline-six1971 302 two-barrel V81971 351 two-barrel V81971 351 four-barrel V81971 429 Cobra Jet V81971 429 Cobra Jet Ram-Air V8

Identification reference

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

Value: 250 cu in; 9.0:1 compression; one-barrel; 145 gross hp at 4,000 rpm and 232 lb-ft at 1,600 rpm
Application: Standard in Ranchero, Ranchero 500, and Ranchero Squire
Type: engine assembly / specification
Car pages: 1971 Ford Ranchero

Value: 302 cu in; 9.0:1 compression; two-barrel; 210 gross hp at 4,600 rpm and 296 lb-ft at 2,600 rpm
Application: Standard in Ranchero GT and optional in other series
Type: engine assembly / specification
Car pages: 1971 Ford Ranchero

Value: 351 cu in; 10.7:1 compression; four-barrel; 285 gross hp at 5,400 rpm and 370 lb-ft at 3,400 rpm
Application: Optional performance engine
Type: engine assembly / specification
Car pages: 1971 Ford Ranchero

Value: 351 cu in; 9.0:1 compression; two-barrel; 240 gross hp at 4,600 rpm and 350 lb-ft at 2,600 rpm
Application: Optional engine; exact family and calibration require code and component evidence
Type: engine assembly / specification
Car pages: 1971 Ford Ranchero

Value: 429 cu in four-barrel CJ-R with pop-through shaker scoop and Ram-Air induction; factory literature retains the 370-hp family rating
Application: Optional top performance path; Ram-Air hardware and records must agree
Type: engine assembly / specification
Car pages: 1971 Ford Ranchero

Value: 429 cu in; 11.3:1 compression; four-barrel; 370 gross hp at 5,400 rpm and 450 lb-ft at 3,400 rpm
Application: Optional high-performance engine with matched cooling, battery, exhaust, and handling equipment
Type: engine assembly / specification
Car pages: 1971 Ford Ranchero

1 linked car page.

Two-door coupe utility with a 6.5-foot cargo box

Ranchero, 500, GT, and Squire

Ford Motor Company of Canada, Limited via XR793 1971 Ford Ranchero factory brochure