Make:

GMC

Model:

C3500

Submodel:

SIERRA

Beginning Year:

1988

Ending Year:

1990

Engine Type:

V8

Liter:

7.4

CID:

454

Engine Family:

Chevy big block Mark IV

Engine Size:

7.4L/454

Application Notes:

Performance; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vac; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible

Engine VIN Code:

N

Region:

USA

Make:

GMC

Model:

C3500

Submodel:

SIERRA SLE

Beginning Year:

1988

Ending Year:

1990

Engine Type:

V8

Liter:

7.4

CID:

454

Engine Family:

Chevy big block Mark IV

Engine Size:

7.4L/454

Application Notes:

Performance; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vac; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible

Engine VIN Code:

N

Region:

USA

Make:

GMC

Model:

C3500

Submodel:

SIERRA SLX

Beginning Year:

1988

Ending Year:

1990

Engine Type:

V8

Liter:

7.4

CID:

454

Engine Family:

Chevy big block Mark IV

Engine Size:

7.4L/454

Application Notes:

Performance; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vac; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible

Engine VIN Code:

N

Region:

USA

Make:

GMC

Model:

C6000

Submodel:

C6D042

Beginning Year:

1990

Ending Year:

1990

Engine Type:

V8

Liter:

7.0

CID:

427

Engine Family:

Chevy big block Mark IV

Engine Size:

7.0L/427

Application Notes:

Performance; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vac; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible

Engine VIN Code:

E

Region:

USA

Make:

GMC

Model:

C7000

Submodel:

C7D042

Beginning Year:

1980

Ending Year:

1990

Engine Type:

V8

Liter:

7.0

CID:

427

Engine Family:

Chevy big block Mark IV

Engine Size:

7.0L/427

Application Notes:

Performance; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vac; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible

Engine VIN Code:

E

Region:

USA

Make:

GMC

Model:

C7000

Submodel:

C7D064

Beginning Year:

1980

Ending Year:

1990

Engine Type:

V8

Liter:

7.0

CID:

427

Engine Family:

Chevy big block Mark IV

Engine Size:

7.0L/427

Application Notes:

Performance; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vac; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible

Engine VIN Code:

E

Region:

USA

Make:

GMC

Model:

G3500

Submodel:

MAGNAVAN

Beginning Year:

1988

Ending Year:

1990

Engine Type:

V8

Liter:

7.4

CID:

454

Engine Family:

Chevy big block Mark IV

Engine Size:

7.4L/454

Application Notes:

Performance; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vac; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible

Engine VIN Code:

N

Region:

USA

Make:

GMC

Model:

G3500

Submodel:

RALLY

Beginning Year:

1989

Ending Year:

1990

Engine Type:

V8

Liter:

7.4

CID:

454

Engine Family:

Chevy big block Mark IV

Engine Size:

7.4L/454

Application Notes:

Performance; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vac; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible

Engine VIN Code:

N

Region:

USA

Make:

GMC

Model:

G3500

Submodel:

RALLY CAMPER SPECIAL

Beginning Year:

1989

Ending Year:

1990

Engine Type:

V8

Liter:

7.4

CID:

454

Engine Family:

Chevy big block Mark IV

Engine Size:

7.4L/454

Application Notes:

Performance; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vac; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible

Engine VIN Code:

N

Region:

USA

Make:

GMC

Model:

G3500

Submodel:

RALLY STX

Beginning Year:

1989

Ending Year:

1990

Engine Type:

V8

Liter:

7.4

CID:

454

Engine Family:

Chevy big block Mark IV

Engine Size:

7.4L/454

Application Notes:

Performance; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vac; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible

Engine VIN Code:

N

Region:

USA

Make:

GMC

Model:

G3500

Submodel:

VANDURA

Beginning Year:

1989

Ending Year:

1990

Engine Type:

V8

Liter:

7.4

CID:

454

Engine Family:

Chevy big block Mark IV

Engine Size:

7.4L/454

Application Notes:

Performance; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vac; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible

Engine VIN Code:

N

Region:

USA

Make:

GMC

Model:

G3500

Submodel:

VANDURA SPECIAL

Beginning Year:

1989

Ending Year:

1990

Engine Type:

V8

Liter:

7.4

CID:

454

Engine Family:

Chevy big block Mark IV

Engine Size:

7.4L/454

Application Notes:

Performance; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vac; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible

Engine VIN Code:

N

Region:

USA

Make:

GMC

Model:

K3500

Submodel:

SIERRA

Beginning Year:

1988

Ending Year:

1990

Engine Type:

V8

Liter:

7.4

CID:

454

Engine Family:

Chevy big block Mark IV

Engine Size:

7.4L/454

Application Notes:

Performance; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vac; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible

Engine VIN Code:

N

Region:

USA

Make:

GMC

Model:

K3500

Submodel:

SIERRA SLE

Beginning Year:

1988

Ending Year:

1990

Engine Type:

V8

Liter:

7.4

CID:

454

Engine Family:

Chevy big block Mark IV

Engine Size:

7.4L/454

Application Notes:

Performance; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vac; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible

Engine VIN Code:

N

Region:

USA

Make:

GMC

Model:

K3500

Submodel:

SIERRA SLX

Beginning Year:

1988

Ending Year:

1990

Engine Type:

V8

Liter:

7.4

CID:

454

Engine Family:

Chevy big block Mark IV

Engine Size:

7.4L/454

Application Notes:

Performance; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vac; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible

Engine VIN Code:

N

Region:

USA

Make:

GMC

Model:

P3500

Submodel:

BASE

Beginning Year:

1990

Ending Year:

1990

Engine Type:

V8

Liter:

7.4

CID:

454

Engine Family:

Chevy big block Mark IV

Engine Size:

7.4L/454

Application Notes:

Performance; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vac; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible

Engine VIN Code:

N

Region:

USA

Make:

GMC

Model:

P3500

Submodel:

VALUE VAN

Beginning Year:

1990

Ending Year:

1990

Engine Type:

V8

Liter:

7.4

CID:

454

Engine Family:

Chevy big block Mark IV

Engine Size:

7.4L/454

Application Notes:

Performance; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vac; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible

Engine VIN Code:

N

Region:

USA

Make:

GMC

Model:

R2500 SUBURBAN

Submodel:

BASE

Beginning Year:

1987

Ending Year:

1990

Engine Type:

V8

Liter:

7.4

CID:

454

Engine Family:

Chevy big block Mark IV

Engine Size:

7.4L/454

Application Notes:

Performance; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vac; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible

Engine VIN Code:

N

Region:

USA

Make:

GMC

Model:

R2500 SUBURBAN

Submodel:

SLE

Beginning Year:

1990

Ending Year:

1990

Engine Type:

V8

Liter:

7.4

CID:

454

Engine Family:

Chevy big block Mark IV

Engine Size:

7.4L/454

Application Notes:

Performance; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vac; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible

Engine VIN Code:

N

Region:

USA

Make:

GMC

Model:

R3500

Submodel:

BASE

Beginning Year:

1987

Ending Year:

1990

Engine Type:

V8

Liter:

7.4

CID:

454

Engine Family:

Chevy big block Mark IV

Engine Size:

7.4L/454

Application Notes:

Performance; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vac; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible

Engine VIN Code:

N

Region:

USA

Make:

GMC

Model:

R3500

Submodel:

SLE

Beginning Year:

1990

Ending Year:

1990

Engine Type:

V8

Liter:

7.4

CID:

454

Engine Family:

Chevy big block Mark IV

Engine Size:

7.4L/454

Application Notes:

Performance; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vac; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible

Engine VIN Code:

N

Region:

USA

Make:

GMC

Model:

V3500

Submodel:

BASE

Beginning Year:

1987

Ending Year:

1990

Engine Type:

V8

Liter:

7.4

CID:

454

Engine Family:

Chevy big block Mark IV

Engine Size:

7.4L/454

Application Notes:

Performance; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vac; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible

Engine VIN Code:

N

Region:

USA

Make:

GMC

Model:

V3500

Submodel:

SLE

Beginning Year:

1990

Ending Year:

1990

Engine Type:

V8

Liter:

7.4

CID:

454

Engine Family:

Chevy big block Mark IV

Engine Size:

7.4L/454

Application Notes:

Performance; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vac; Class 2, Fair Idle With Good Low To Mid Range Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible

Engine VIN Code:

N

Region:

USA