MAMUSTANG ATLASTHE ENTHUSIAST'S REFERENCE

First generation · Model profile

1971 BOSS 351

The Boss 351 brings a distinctive high-performance Cleveland specification to the larger first-generation body. Its engine should not be confused with a Windsor simply because both displace 351 cubic inches.

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First generation reference photograph; see caption for applicability

Representative image from this generation; not evidence of this exact configuration. Photo identification & credits

THE CONFIGURATION.

Engine
351 cu in Cleveland V8
Power
See original source
Torque
See original source
Transmission
4-speed manual
Body style
SportsRoof
Market
United States

See the year-specific source. Historical profile; numerical ratings not yet transcribed from the source.

WHY IT MATTERS.

The Boss 351 brings a distinctive high-performance Cleveland specification to the larger first-generation body. Its engine should not be confused with a Windsor simply because both displace 351 cubic inches.

The first cars reached buyers in April 1964 as 1965 models. Early-production cars are often called 1964½. The 1967 redesign created room for larger engines; 1969 introduced the Boss models and Mach 1. The larger 1971–73 cars closed the first chapter.

BUYING & SERVICING.

Inspect the cowl, floor pans, torque boxes, shock towers, rear frame rails, and trunk drop-offs. Verify engine and body identification against year-specific records. Restoration quality and structural integrity matter more than fresh paint.

Check the exact vehicle's identification, records, and fitted equipment. Modified engines, transmissions, and brake packages require their own applicable documentation.