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BOSS
1969-1971

Mustang  Boss  Production  Figures

1969

Boss 302

1,628

1969

Boss 429

857

1970

Boss 302

7,013

1970

Boss 429

499

1971

Boss 351

1,806

Total

Boss 302

8,641

Total

Boss 429

1,356

Total

Boss 351

1,806

 

Boss  302  Engine  Specifications

Produced

1969-70

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Engine Family

small-block Windsor

 

Size

4.00in x 3.00in (5.0 Liter)

 

V/C Bolts

8

 

Intake

aluminum,dual plane

 

Carburetor

Holley manual choke,780 cfm

 

Engine Code

G

 

Compression

10.5:1

 

Torque

290@4300rpm

 

Horsepower

290@5800rpm

 

Boss  351  Engine  Specifications

Produced

1971

 

Engine Family

335 series small block

 

Size

4.00in x 3.50in (5.8 Liter)

 

V/C Bolts

8

 

Intake

aluminum

 

Carburetor

Ford/Autolite 4300-D

 

Engine Code

R

 

Compression

11.1:1

 

Torque

380@3400rpm

 

Horsepower

330@5800rpm

 

Boss  429  Engine  Specifications

Produced

1969-70

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Engine Family

385 series big block

 

Size

4.360in x 3.590in (429 cid)

 

V/C Bolts

10

 

Intake

aluminum

 

Carburetor

Holley

 

Engine Code

Z

 

Compression

10.5:1

 

Torque

450@3400rpm

 

Horsepower

375@5200rpm

 

 

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