Make:
GMC
Model:
C2500
Submodel:
HIGH SIERRA
Beginning Year:
1979
Ending Year:
1986
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
GAS; Performance; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vacuum Than Stock,; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible
Engine VIN Code:
L
Region:
USA
Make:
GMC
Model:
C2500
Submodel:
HIGH SIERRA
Beginning Year:
1980
Ending Year:
1980
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
GAS; Performance; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vacuum Than Stock,; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible
Engine VIN Code:
P
Region:
USA
Make:
GMC
Model:
C2500
Submodel:
HIGH SIERRA
Beginning Year:
1980
Ending Year:
1986
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
GAS; Performance; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vacuum Than Stock,; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible
Engine VIN Code:
M
Region:
USA
Make:
GMC
Model:
C2500
Submodel:
HIGH SIERRA
Beginning Year:
1982
Ending Year:
1986
Engine Type:
V8
Liter:
5.0
CID:
305
Engine Family:
Chevy small block Gen I
Engine Size:
5.0L/305
Application Notes:
Performance; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vacuum Than Stock,; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible
Engine VIN Code:
H
Region:
USA
Make:
GMC
Model:
C2500
Submodel:
SIERRA
Beginning Year:
1988
Ending Year:
1993
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
GAS; Performance; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vacuum Than Stock,; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible
Engine VIN Code:
K
Region:
USA
Make:
GMC
Model:
C2500
Submodel:
SIERRA CLASSIC
Beginning Year:
1979
Ending Year:
1979
Engine Type:
V8
Liter:
6.6
CID:
400
Engine Family:
Chevy small block Gen I
Engine Size:
6.6L/400
Application Notes:
Performance; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vacuum Than Stock,; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible
Engine VIN Code:
R
Region:
USA
Make:
GMC
Model:
C2500
Submodel:
SIERRA CLASSIC
Beginning Year:
1979
Ending Year:
1986
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
GAS; Performance; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vacuum Than Stock,; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible
Engine VIN Code:
L
Region:
USA
Make:
GMC
Model:
C2500
Submodel:
SIERRA CLASSIC
Beginning Year:
1980
Ending Year:
1980
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
GAS; Performance; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vacuum Than Stock,; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible
Engine VIN Code:
P
Region:
USA
Make:
GMC
Model:
C2500
Submodel:
SIERRA CLASSIC
Beginning Year:
1980
Ending Year:
1986
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
GAS; Performance; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vacuum Than Stock,; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible
Engine VIN Code:
M
Region:
USA
Make:
GMC
Model:
C2500
Submodel:
SIERRA CLASSIC
Beginning Year:
1982
Ending Year:
1986
Engine Type:
V8
Liter:
5.0
CID:
305
Engine Family:
Chevy small block Gen I
Engine Size:
5.0L/305
Application Notes:
Performance; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vacuum Than Stock,; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible
Engine VIN Code:
H
Region:
USA
Make:
GMC
Model:
C2500
Submodel:
SIERRA GRANDE
Beginning Year:
1979
Ending Year:
1979
Engine Type:
V8
Liter:
6.6
CID:
400
Engine Family:
Chevy small block Gen I
Engine Size:
6.6L/400
Application Notes:
Performance; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vacuum Than Stock,; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible
Engine VIN Code:
R
Region:
USA
Make:
GMC
Model:
C2500
Submodel:
SIERRA GRANDE
Beginning Year:
1979
Ending Year:
1982
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
GAS; Performance; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vacuum Than Stock,; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible
Engine VIN Code:
L
Region:
USA
Make:
GMC
Model:
C2500
Submodel:
SIERRA GRANDE
Beginning Year:
1980
Ending Year:
1980
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
GAS; Performance; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vacuum Than Stock,; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible
Engine VIN Code:
P
Region:
USA
Make:
GMC
Model:
C2500
Submodel:
SIERRA GRANDE
Beginning Year:
1980
Ending Year:
1982
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
GAS; Performance; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vacuum Than Stock,; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible
Engine VIN Code:
M
Region:
USA
Make:
GMC
Model:
C2500
Submodel:
SIERRA GRANDE
Beginning Year:
1982
Ending Year:
1982
Engine Type:
V8
Liter:
5.0
CID:
305
Engine Family:
Chevy small block Gen I
Engine Size:
5.0L/305
Application Notes:
Performance; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vacuum Than Stock,; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible
Engine VIN Code:
H
Region:
USA
Make:
GMC
Model:
C2500
Submodel:
SIERRA SL
Beginning Year:
1994
Ending Year:
1995
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
GAS; Performance; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vacuum Than Stock,; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible
Engine VIN Code:
K
Region:
USA
Make:
GMC
Model:
C2500
Submodel:
SIERRA SLE
Beginning Year:
1988
Ending Year:
1995
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
GAS; Performance; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vacuum Than Stock,; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible
Engine VIN Code:
K
Region:
USA
Make:
GMC
Model:
C2500
Submodel:
SIERRA SLT
Beginning Year:
1994
Ending Year:
1995
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
GAS; Performance; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vacuum Than Stock,; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible
Engine VIN Code:
K
Region:
USA
Make:
GMC
Model:
C2500
Submodel:
SIERRA SLX
Beginning Year:
1988
Ending Year:
1993
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
GAS; Performance; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vacuum Than Stock,; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible
Engine VIN Code:
K
Region:
USA
Make:
GMC
Model:
C2500 SUBURBAN
Submodel:
BASE
Beginning Year:
1979
Ending Year:
1986
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
GAS; Performance; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vacuum Than Stock,; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible
Engine VIN Code:
L
Region:
USA
Make:
GMC
Model:
C2500 SUBURBAN
Submodel:
BASE
Beginning Year:
1980
Ending Year:
1980
Engine Type:
V8
Liter:
6.6
CID:
400
Engine Family:
Chevy small block Gen I
Engine Size:
6.6L/400
Application Notes:
Performance; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vacuum Than Stock,; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible
Engine VIN Code:
X
Region:
USA
Make:
GMC
Model:
C2500 SUBURBAN
Submodel:
BASE
Beginning Year:
1980
Ending Year:
1986
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
GAS; Performance; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vacuum Than Stock,; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible
Engine VIN Code:
M
Region:
USA
Make:
GMC
Model:
C2500 SUBURBAN
Submodel:
BASE
Beginning Year:
1982
Ending Year:
1986
Engine Type:
V8
Liter:
5.0
CID:
305
Engine Family:
Chevy small block Gen I
Engine Size:
5.0L/305
Application Notes:
Performance; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vacuum Than Stock,; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible
Engine VIN Code:
H
Region:
USA
Make:
GMC
Model:
C2500 SUBURBAN
Submodel:
BASE
Beginning Year:
1992
Ending Year:
1995
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
GAS; Performance; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vacuum Than Stock,; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible
Engine VIN Code:
K
Region:
USA
Make:
GMC
Model:
C2500 SUBURBAN
Submodel:
HIGH SIERRA
Beginning Year:
1979
Ending Year:
1986
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
GAS; Performance; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, Lower Engine Vacuum Than Stock,; Class 3, Rough Idle With Mid To High RPM Torque And Horsepower, Lower Engine Vacuum Than Stock, May Not Be Computer Compatible
Engine VIN Code:
L
Region:
USA