Brands Vehicles
Lowest Prices
Free Returns
Online Since 2009
Shopping for

1991 GMC C2500

X

Displaying 1 to 25 (of 54 products)
On Sale:

$31.35

Avail:
2 in Stock
Warehouse: US-1
Qty:
EnginePer VehicleFit NotesFitment Notes
1991 GMC C2500 equipped with
5.7L V8 Gas OHV
 
2
 
with PermaTorque Severe Duty
Head Bolts Not Included
Head Bolt Replacement Recommended
 
1991 GMC C2500 equipped with
5.7L V8 Gas OHV with PermaTorque Severe Duty
Head Bolts Not Included
Head Bolt Replacement Recommended

2 Per Vehicle
On Sale:

$15.27

Avail:
1 in Stock
Warehouse: US-1
Qty:
EnginePer VehicleFit NotesFitment Notes
1991 GMC C2500 equipped with
5.7L V8 Gas OHV
 
2
 
Head Bolts Not Included
Head Bolt Replacement Recommended
PermaTorque Gasket Included
 
1991 GMC C2500 equipped with
5.7L V8 Gas OHV Head Bolts Not Included
Head Bolt Replacement Recommended
PermaTorque Gasket Included

2 Per Vehicle
On Sale:

$17.33

Avail:
2 in Stock
Warehouse: US-1
Qty:
EnginePer VehicleFit NotesFitment Notes
1991 GMC C2500 equipped with
5.0L V8 Gas OHV
 
2
 
Head Bolts Not Included
Head Bolt Replacement Recommended
PermaTorque Gasket Included
 
1991 GMC C2500 equipped with
5.0L V8 Gas OHV Head Bolts Not Included
Head Bolt Replacement Recommended
PermaTorque Gasket Included

2 Per Vehicle
On Sale:

$20.11

Avail:
2 in Stock
Warehouse: US-1
Qty:
EnginePer VehicleFit NotesFitment Notes
1991 GMC C2500 equipped with
7.4L V8 Gas OHV
 
2
 
PermaTorque Gasket Included
 
1991 GMC C2500 equipped with
7.4L V8 Gas OHV PermaTorque Gasket Included

2 Per Vehicle
On Sale:

$41.25

Avail:
2 in Stock
Warehouse: US-1
Qty:
EnginePer VehicleFit NotesFitment Notes
1991 GMC C2500 equipped with
6.2L V8 Diesel OHV
 
2
 
Standard Thickness
Head Bolts Not Included
Head Bolt Replacement Recommended
 
1991 GMC C2500 equipped with
6.2L V8 Diesel OHV Standard Thickness
Head Bolts Not Included
Head Bolt Replacement Recommended

2 Per Vehicle
On Sale:

$11.60

Avail:
1 in Stock
Warehouse: US-1
Qty:
EnginePer VehicleFit NotesFitment Notes
1991 GMC C2500 equipped with
4.3L V6 Gas OHV
 
2
 
HEAD BOLTS NOT INCL
PERMATORQUE
HEAD BOLT REPLACEMENT RECOMMENDED
 
1991 GMC C2500 equipped with
4.3L V6 Gas OHV HEAD BOLTS NOT INCL
PERMATORQUE
HEAD BOLT REPLACEMENT RECOMMENDED
2 Per Vehicle
On Sale:

$44.39

Avail:
3 in Stock
Warehouse: US-12
Qty:
EnginePer VehicleFit NotesFitment Notes
1991 GMC C2500 equipped with
5.0L V8 Gas OHV
 
2
 
Eng: L03
8th VIN Digit: H
 
1991 GMC C2500 equipped with
5.0L V8 Gas OHV Eng: L03
8th VIN Digit: H

2 Per Vehicle
On Sale:

$49.32

Avail:
3 in Stock
Warehouse: US-12
Qty:
EnginePer VehicleFit NotesFitment Notes
1991 GMC C2500 equipped with
4.3L V6 Gas OHV
 
2
 
Eng: LB4
8th VIN Digit: Z
 
1991 GMC C2500 equipped with
4.3L V6 Gas OHV Eng: LB4
8th VIN Digit: Z

2 Per Vehicle
On Sale:

$58.69

Avail:
4 in Stock
Warehouse: US-12
Qty:
EnginePer VehicleFit NotesFitment Notes
1991 GMC C2500 equipped with
7.4L V8 Gas OHV
 
2
 
Eng: L19
8th VIN Digit: N
 
1991 GMC C2500 equipped with
7.4L V8 Gas OHV Eng: L19
8th VIN Digit: N

2 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC C2500 equipped with
4.3L V6 Gas OHV
 
1
 
[Head Gasket]
.060 Thick
1 Per Pkg.
1.231.66 x 3.03 Port
Che. Eng.
Perf.
Steel Core Laminate
w/Preflattened Steel Wire Ring
w/Printoseal
 
1991 GMC C2500 equipped with
4.3L V6 Gas OHV [Head Gasket]
.060 Thick
1 Per Pkg.
1.231.66 x 3.03 Port
Che. Eng.
Perf.
Steel Core Laminate
w/Preflattened Steel Wire Ring
w/Printoseal
1 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC C2500 equipped with
4.3L V6 Gas OHV
 
1
 
[Head Gasket]
.030 Thick
1 Per Pkg.
Che. Eng.
Compr. Port
Gskt. Bore 4.166
Nom. Compr. Thickness .041
Perf.
w/o Coating
 
1991 GMC C2500 equipped with
4.3L V6 Gas OHV [Head Gasket]
.030 Thick
1 Per Pkg.
Che. Eng.
Compr. Port
Gskt. Bore 4.166
Nom. Compr. Thickness .041
Perf.
w/o Coating
1 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC C2500 equipped with
4.3L V6 Gas OHV
 
1
 
[Head Gasket]
.120 Thick
1 Per Pkg
Che. Eng.
Gskt. Bore 4.100
Perf.
PermaTorque w/Spec LOC WIRE Comb. Seal
w/Coating
with 2.02 Ports
 
1991 GMC C2500 equipped with
4.3L V6 Gas OHV [Head Gasket]
.120 Thick
1 Per Pkg
Che. Eng.
Gskt. Bore 4.100
Perf.
PermaTorque w/Spec LOC WIRE Comb. Seal
w/Coating
with 2.02 Ports
1 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC C2500 equipped with
7.4L V8 Gas OHV
 
1
 
[Head Gasket]
0.039 Nominal Compr. Thickness
1 Per Pkg.
10.9cc Compressed Volume
Also suitable for marine apps
Bore 4.640
Can use on Mark IV (w/block mods.) & V-pass. car/truck-bowtie and Hi Perf. blocks
For Cast Iron or Alum.Heads
One open rear coolant hole in gasket. All three lower coolant holes are open
Perf.
Round Bore-will not fit some cylinder head valve pockets. Severe duty-use w/Nitrous-Turbos. Requires precision receiver groove machined in head-for engine bore up to 4.625 in
 
1991 GMC C2500 equipped with
7.4L V8 Gas OHV [Head Gasket]
0.039 Nominal Compr. Thickness
1 Per Pkg.
10.9cc Compressed Volume
Also suitable for marine apps
Bore 4.640
Can use on Mark IV (w/block mods.) & V-pass. car/truck-bowtie and Hi Perf. blocks
For Cast Iron or Alum.Heads
One open rear coolant hole in gasket. All three lower coolant holes are open
Perf.
Round Bore-will not fit some cylinder head valve pockets. Severe duty-use w/Nitrous-Turbos. Requires precision receiver groove machined in head-for engine bore up to 4.625 in
1 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC C2500 equipped with
7.4L V8 Gas OHV
 
1
 
[Head Gasket]
0.041 Nominal Compr. Thickness
1 Per Pkg.
10.9cc Compressed Volume
Bore 4.540
Both rear coolant holes are open in gasket
Can use on all Mark IV heads
For Cast Iron or Alum.Heads
Minimal Alum. Head brinneling
Perf.
Pre-flattened Steel Wire Combustion seal
Steel Core Laminate Construction
all three lower coolant holes are open
 
1991 GMC C2500 equipped with
7.4L V8 Gas OHV [Head Gasket]
0.041 Nominal Compr. Thickness
1 Per Pkg.
10.9cc Compressed Volume
Bore 4.540
Both rear coolant holes are open in gasket
Can use on all Mark IV heads
For Cast Iron or Alum.Heads
Minimal Alum. Head brinneling
Perf.
Pre-flattened Steel Wire Combustion seal
Steel Core Laminate Construction
all three lower coolant holes are open
1 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC C2500 equipped with
4.3L V6 Gas OHV
 
1
 
[Head Gasket]
.060 Thick
1 Per Pkg.
Che. Eng.
Perf.
Steel Core Laminate
w/Coating
w/Preflattened Copper Wire Ring
with 2.02 Ports
 
1991 GMC C2500 equipped with
4.3L V6 Gas OHV [Head Gasket]
.060 Thick
1 Per Pkg.
Che. Eng.
Perf.
Steel Core Laminate
w/Coating
w/Preflattened Copper Wire Ring
with 2.02 Ports
1 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC C2500 equipped with
7.4L V8 Gas OHV
 
1
 
[Head Gasket]
0.039 Nominal Compr. Thickness
1 Per Pkg.
9.7cc Compressed Volume
Bore 4.370
Both rear coolant holes open
For Alum. heads
Perf.
Steel Core Laminate Const.
Use on Mark IV heads
all three lower coolant holes are open
 
1991 GMC C2500 equipped with
7.4L V8 Gas OHV [Head Gasket]
0.039 Nominal Compr. Thickness
1 Per Pkg.
9.7cc Compressed Volume
Bore 4.370
Both rear coolant holes open
For Alum. heads
Perf.
Steel Core Laminate Const.
Use on Mark IV heads
all three lower coolant holes are open
1 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC C2500 equipped with
7.4L V8 Gas OHV
 
1
 
[Head Gasket]
0.039 Nominal Compr. Thickness
1 Per Pkg.
9.7cc Compressed Volume
Bore 4.370
Can use on Mark IV with block mods-fits Mark V with no mods
For Cast Iron or Alum.Heads
Minimal Alum. Head brinneling
One rear coolant hole open in gasket
Perf.
Pre-Flattened Steel Wire
Stainless Steel Core Laminate
all three lower coolant holes are open
can be used in marine apps
 
1991 GMC C2500 equipped with
7.4L V8 Gas OHV [Head Gasket]
0.039 Nominal Compr. Thickness
1 Per Pkg.
9.7cc Compressed Volume
Bore 4.370
Can use on Mark IV with block mods-fits Mark V with no mods
For Cast Iron or Alum.Heads
Minimal Alum. Head brinneling
One rear coolant hole open in gasket
Perf.
Pre-Flattened Steel Wire
Stainless Steel Core Laminate
all three lower coolant holes are open
can be used in marine apps
1 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC C2500 equipped with
7.4L V8 Gas OHV
 
1
 
[Head Gasket]
0.039 Nominal Compr. Thickness
1 Per Pkg.
10.5cc Compressed Volume
Bore 4.540
Can use on Mark IV with block mods-fits Mark V with no mods
For Cast Iron or Alum.Heads
Minimal Alum. Head brinneling
One rear coolant hole open in gasket
Perf.
Pre-Flattened Steel Wire
Stainless Steel Core Laminate
all three lower coolant holes are open
can be used in marine apps
 
1991 GMC C2500 equipped with
7.4L V8 Gas OHV [Head Gasket]
0.039 Nominal Compr. Thickness
1 Per Pkg.
10.5cc Compressed Volume
Bore 4.540
Can use on Mark IV with block mods-fits Mark V with no mods
For Cast Iron or Alum.Heads
Minimal Alum. Head brinneling
One rear coolant hole open in gasket
Perf.
Pre-Flattened Steel Wire
Stainless Steel Core Laminate
all three lower coolant holes are open
can be used in marine apps
1 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC C2500 equipped with
7.4L V8 Gas OHV
 
1
 
[Head Gasket]
0.041 Nominal Compr. Thickness
1 Per Pkg.
11.3cc Compressed Volume
Bore 4.630
Both rear coolant holes open in gasket
For Cast Iron or Alum.Heads
Mark IV head config.
Minimal Alum. Head brinneling
Perf.
Pre-Flattened Steel Wire
Steel Core Laminate
X-large bore-not recommended for engine bore 4.625 in. or larger
all three lower coolant holes are open
 
1991 GMC C2500 equipped with
7.4L V8 Gas OHV [Head Gasket]
0.041 Nominal Compr. Thickness
1 Per Pkg.
11.3cc Compressed Volume
Bore 4.630
Both rear coolant holes open in gasket
For Cast Iron or Alum.Heads
Mark IV head config.
Minimal Alum. Head brinneling
Perf.
Pre-Flattened Steel Wire
Steel Core Laminate
X-large bore-not recommended for engine bore 4.625 in. or larger
all three lower coolant holes are open
1 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC C2500 equipped with
7.4L V8 Gas OHV
 
1
 
[Head Gasket]
.039 Comp. Thickness
11.3cc Compressed Volume
Bore 4.630
Cast Iron Or Alum. Heads
Extra Large Bore
Not Recom. For Bore 4.625 Or Larger
Perf.
Pre-Flattened Steel Wire
Stainless Steel Core Laminate
 
1991 GMC C2500 equipped with
7.4L V8 Gas OHV [Head Gasket]
.039 Comp. Thickness
11.3cc Compressed Volume
Bore 4.630
Cast Iron Or Alum. Heads
Extra Large Bore
Not Recom. For Bore 4.625 Or Larger
Perf.
Pre-Flattened Steel Wire
Stainless Steel Core Laminate

1 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC C2500 equipped with
7.4L V8 Gas OHV
 
1
 
[Head Gasket]
0.051 Nominal Compr. Thickness
1 Per Pkg.
13.9cc Compressed Volume
Bore 4.620
For cast iron or Alum. Heads-Round Bore-will not fit some cyl. head valve pockets
Minimal Alum. Head brinneling
One rear coolant hole open
Perf.
Pre-Flattened Steel Wire Comb. Seal
Steel Core Laminate Const.
Use on Mark IV truck or bowtie blocks or Mark V
for PRO STOCK Buick-Chev-Olds-Pont. Engs w/Chev bolt pattern
three lower coolant holes open
 
1991 GMC C2500 equipped with
7.4L V8 Gas OHV [Head Gasket]
0.051 Nominal Compr. Thickness
1 Per Pkg.
13.9cc Compressed Volume
Bore 4.620
For cast iron or Alum. Heads-Round Bore-will not fit some cyl. head valve pockets
Minimal Alum. Head brinneling
One rear coolant hole open
Perf.
Pre-Flattened Steel Wire Comb. Seal
Steel Core Laminate Const.
Use on Mark IV truck or bowtie blocks or Mark V
for PRO STOCK Buick-Chev-Olds-Pont. Engs w/Chev bolt pattern
three lower coolant holes open
1 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC C2500 equipped with
5.0L V8 Gas OHV
 
2
 
with PermaTorque Severe Duty
Head Bolts Not Included
Head Bolt Replacement Recommended
 
1991 GMC C2500 equipped with
5.0L V8 Gas OHV with PermaTorque Severe Duty
Head Bolts Not Included
Head Bolt Replacement Recommended

2 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC C2500 equipped with
7.4L V8 Gas OHV
 
2
 
with PermaTorque Severe Duty
 
1991 GMC C2500 equipped with
7.4L V8 Gas OHV with PermaTorque Severe Duty

2 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC C2500 equipped with
4.3L V6 Gas OHV
 
2
 
with PermaTorque Severe Duty
Head Bolts Not Included
Head Bolt Replacement Recommended
 
1991 GMC C2500 equipped with
4.3L V6 Gas OHV with PermaTorque Severe Duty
Head Bolts Not Included
Head Bolt Replacement Recommended

2 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC C2500 equipped with
4.3L V6 Gas OHV
 
2
 
Head Bolts Not Included
Head Bolt Replacement Recommended
PermaTorque Severe Duty MLS Head Gasket(s) Included
 
1991 GMC C2500 equipped with
4.3L V6 Gas OHV Head Bolts Not Included
Head Bolt Replacement Recommended
PermaTorque Severe Duty MLS Head Gasket(s) Included

2 Per Vehicle
Displaying 1 to 25 (of 54 products)