Make:
GMC
Model:
K25 SUBURBAN
Submodel:
HIGH SIERRA
Beginning Year:
1977
Ending Year:
1978
Engine Type:
V8
Liter:
6.6
CID:
400
Engine Family:
Chevy small block Gen I
Engine Size:
6.6L/400
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:
R
Region:
USA
Make:
GMC
Model:
K25 SUBURBAN
Submodel:
SIERRA CLASSIC
Beginning Year:
1976
Ending Year:
1978
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
CARB; GAS; 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:
L
Region:
USA
Make:
GMC
Model:
K25 SUBURBAN
Submodel:
SIERRA CLASSIC
Beginning Year:
1977
Ending Year:
1978
Engine Type:
V8
Liter:
6.6
CID:
400
Engine Family:
Chevy small block Gen I
Engine Size:
6.6L/400
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:
R
Region:
USA
Make:
GMC
Model:
K25 SUBURBAN
Submodel:
SIERRA GRANDE
Beginning Year:
1976
Ending Year:
1978
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
CARB; GAS; 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:
L
Region:
USA
Make:
GMC
Model:
K25 SUBURBAN
Submodel:
SIERRA GRANDE
Beginning Year:
1977
Ending Year:
1978
Engine Type:
V8
Liter:
6.6
CID:
400
Engine Family:
Chevy small block Gen I
Engine Size:
6.6L/400
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:
R
Region:
USA
Make:
GMC
Model:
K35
Submodel:
BASE
Beginning Year:
1977
Ending Year:
1978
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
CARB; GAS; 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:
L
Region:
USA
Make:
GMC
Model:
K35
Submodel:
BASE
Beginning Year:
1977
Ending Year:
1978
Engine Type:
V8
Liter:
6.6
CID:
400
Engine Family:
Chevy small block Gen I
Engine Size:
6.6L/400
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:
R
Region:
USA
Make:
GMC
Model:
K35
Submodel:
HIGH SIERRA
Beginning Year:
1977
Ending Year:
1978
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
CARB; GAS; 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:
L
Region:
USA
Make:
GMC
Model:
K35
Submodel:
HIGH SIERRA
Beginning Year:
1977
Ending Year:
1978
Engine Type:
V8
Liter:
6.6
CID:
400
Engine Family:
Chevy small block Gen I
Engine Size:
6.6L/400
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:
R
Region:
USA
Make:
GMC
Model:
K35
Submodel:
SIERRA CLASSIC
Beginning Year:
1977
Ending Year:
1978
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
CARB; GAS; 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:
L
Region:
USA
Make:
GMC
Model:
K35
Submodel:
SIERRA CLASSIC
Beginning Year:
1977
Ending Year:
1978
Engine Type:
V8
Liter:
6.6
CID:
400
Engine Family:
Chevy small block Gen I
Engine Size:
6.6L/400
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:
R
Region:
USA
Make:
GMC
Model:
K35
Submodel:
SIERRA GRANDE
Beginning Year:
1977
Ending Year:
1978
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
CARB; GAS; 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:
L
Region:
USA
Make:
GMC
Model:
K35
Submodel:
SIERRA GRANDE
Beginning Year:
1977
Ending Year:
1978
Engine Type:
V8
Liter:
6.6
CID:
400
Engine Family:
Chevy small block Gen I
Engine Size:
6.6L/400
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:
R
Region:
USA
Make:
GMC
Model:
P25
Submodel:
BASE
Beginning Year:
1976
Ending Year:
1978
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
CARB; GAS; 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:
L
Region:
USA
Make:
GMC
Model:
P25
Submodel:
VALUE VAN
Beginning Year:
1976
Ending Year:
1978
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
CARB; GAS; 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:
L
Region:
USA
Make:
GMC
Model:
P35
Submodel:
BASE
Beginning Year:
1976
Ending Year:
1978
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
CARB; GAS; 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:
L
Region:
USA
Make:
GMC
Model:
P35
Submodel:
VALUE VAN
Beginning Year:
1976
Ending Year:
1978
Engine Type:
V8
Liter:
5.7
CID:
350
Engine Family:
Chevy small block Gen I
Engine Size:
5.7L/350
Application Notes:
CARB; GAS; 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:
L
Region:
USA