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1991 GMC R3500

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Displaying 1 to 25 (of 39 products)
On Sale:

$31.35

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2 in Stock
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EnginePer VehicleFit NotesFitment Notes
1991 GMC R3500 equipped with
5.7L V8 Gas OHV
 
2
 
with PermaTorque Severe Duty
Head Bolts Not Included
Head Bolt Replacement Recommended
 
1991 GMC R3500 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
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EnginePer VehicleFit NotesFitment Notes
1991 GMC R3500 equipped with
5.7L V8 Gas OHV
 
2
 
Head Bolts Not Included
Head Bolt Replacement Recommended
PermaTorque Gasket Included
 
1991 GMC R3500 equipped with
5.7L V8 Gas OHV Head Bolts Not Included
Head Bolt Replacement Recommended
PermaTorque Gasket Included

2 Per Vehicle
On Sale:

$20.11

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2 in Stock
Warehouse: US-1
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EnginePer VehicleFit NotesFitment Notes
1991 GMC R3500 equipped with
7.4L V8 Gas OHV
 
2
 
PermaTorque Gasket Included
 
1991 GMC R3500 equipped with
7.4L V8 Gas OHV PermaTorque Gasket Included

2 Per Vehicle
On Sale:

$41.25

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2 in Stock
Warehouse: US-1
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EnginePer VehicleFit NotesFitment Notes
1991 GMC R3500 equipped with
6.2L V8 Diesel OHV
 
2
 
Standard Thickness
Head Bolts Not Included
Head Bolt Replacement Recommended
 
1991 GMC R3500 equipped with
6.2L V8 Diesel OHV Standard Thickness
Head Bolts Not Included
Head Bolt Replacement Recommended

2 Per Vehicle
On Sale:

$58.69

Avail:
3 in Stock
Warehouse: US-12
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EnginePer VehicleFit NotesFitment Notes
1991 GMC R3500 equipped with
7.4L V8 Gas OHV
 
2
 
Eng: L19
8th VIN Digit: N
 
1991 GMC R3500 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 R3500 equipped with
5.7L V8 Gas OHV
 
1
 
[Head Gasket]
0.041 Nominal Compr. Thickness
1 Per Pkg.
9.1cc Compressed Volume
Bore 4.190
Can use on Alum. Blocks w/Liners
For Cast Iron or Alum.Heads
Minimal Alum. Head brinneling
Perf.
Small Chev. Listing
Steel Core Laminate Const. Pre-flattened Steel Wire Comb. Seal
 
1991 GMC R3500 equipped with
5.7L V8 Gas OHV [Head Gasket]
0.041 Nominal Compr. Thickness
1 Per Pkg.
9.1cc Compressed Volume
Bore 4.190
Can use on Alum. Blocks w/Liners
For Cast Iron or Alum.Heads
Minimal Alum. Head brinneling
Perf.
Small Chev. Listing
Steel Core Laminate Const. Pre-flattened Steel Wire Comb. Seal
1 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC R3500 equipped with
5.7L V8 Gas OHV
 
1
 
[Head Gasket]
0.039 Nominal Compr. Thickness
1 Per Pkg.
8.9cc Compressed Volume
Bore 4.166
Do not use on Alum. Blocks w/Liners
For Aluminum Heads only
No Alum. Head brinneling
Perf.
Pre-Flattened Steel Wire Comb. Seal
Recom. for '86-91 Corvette Alum. Heads
Small Chev. Listing
Steel Core Laminate Const.
 
1991 GMC R3500 equipped with
5.7L V8 Gas OHV [Head Gasket]
0.039 Nominal Compr. Thickness
1 Per Pkg.
8.9cc Compressed Volume
Bore 4.166
Do not use on Alum. Blocks w/Liners
For Aluminum Heads only
No Alum. Head brinneling
Perf.
Pre-Flattened Steel Wire Comb. Seal
Recom. for '86-91 Corvette Alum. Heads
Small Chev. Listing
Steel Core Laminate Const.
1 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC R3500 equipped with
7.4L V8 Gas OHV
 
1
 
[Head Gasket]
.090 Thick
1 Per Pkg.
Che. Eng.
For Cast Iron/Alum Heads Round Bore
Perf.
Req. Prec. Port
S.D.
w/Coating
 
1991 GMC R3500 equipped with
7.4L V8 Gas OHV [Head Gasket]
.090 Thick
1 Per Pkg.
Che. Eng.
For Cast Iron/Alum Heads Round Bore
Perf.
Req. Prec. Port
S.D.
w/Coating
1 Per Vehicle
1991 GMC R3500 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 R3500 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 R3500 equipped with
5.7L V8 Gas OHV
 
1
 
[Head Gasket]
0.039 Nominal Compr. Thickness
1 Per Pkg.
9.0cc Compressed Volume
Also suitable for Marine
Bore 4.200
Can use on Alum. Blocks w/Liners
For Cast Iron or Alum.Heads
Minimal Alum. Head brinneling
Perf.
Pre-Flattened Steel Wire Comb. Seal
Small Chev. Listing
Stainless Steel Core Laminate Const.
 
1991 GMC R3500 equipped with
5.7L V8 Gas OHV [Head Gasket]
0.039 Nominal Compr. Thickness
1 Per Pkg.
9.0cc Compressed Volume
Also suitable for Marine
Bore 4.200
Can use on Alum. Blocks w/Liners
For Cast Iron or Alum.Heads
Minimal Alum. Head brinneling
Perf.
Pre-Flattened Steel Wire Comb. Seal
Small Chev. Listing
Stainless Steel Core Laminate Const.
1 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC R3500 equipped with
7.4L V8 Gas OHV
 
1
 
[Head Gasket]
.120 Thick
1 Per Pkg.
Che. Eng.
For Cast Iron/Alum. Heads
Gskt. Bore 4.540
Nom. 1.25 Port
Perf.
w/Coating
 
1991 GMC R3500 equipped with
7.4L V8 Gas OHV [Head Gasket]
.120 Thick
1 Per Pkg.
Che. Eng.
For Cast Iron/Alum. Heads
Gskt. Bore 4.540
Nom. 1.25 Port
Perf.
w/Coating
1 Per Vehicle
1991 GMC R3500 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 R3500 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 R3500 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 R3500 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 R3500 equipped with
5.7L V8 Gas OHV
 
1
 
[Head Gasket]
0.041 Nominal Compr. Thickness
1 Per Pkg.
9.3cc Compressed Volume
Bore 4.200
Can use on Alum. Blocks w/Liners
For Cast Iron or Alum.Heads
Minimal Alum. Head brinneling
Perf.
Pre-Flattened Steel Wire Comb. Seal
Small Chev. Listing
Steel Core Laminate Construction
 
1991 GMC R3500 equipped with
5.7L V8 Gas OHV [Head Gasket]
0.041 Nominal Compr. Thickness
1 Per Pkg.
9.3cc Compressed Volume
Bore 4.200
Can use on Alum. Blocks w/Liners
For Cast Iron or Alum.Heads
Minimal Alum. Head brinneling
Perf.
Pre-Flattened Steel Wire Comb. Seal
Small Chev. Listing
Steel Core Laminate Construction
1 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC R3500 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 R3500 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 R3500 equipped with
5.7L V8 Gas OHV
 
1
 
[Head Gasket]
0.039 Nominal Compr. Thickness
1 Per Pkg.
8.2cc Compressed Volume
Bore 4.080
Do not use on Alum. Blocks w/Liners
For Small Chambered Alum. Race Heads only
Minimal Alum. Head brinneling
Perf.
Pre-Flattened Steel Wire Comb. Seal
Small Chev. Listing
Steel Core Laminate Const.
Will not fit O.E. type Combustion Chambers
 
1991 GMC R3500 equipped with
5.7L V8 Gas OHV [Head Gasket]
0.039 Nominal Compr. Thickness
1 Per Pkg.
8.2cc Compressed Volume
Bore 4.080
Do not use on Alum. Blocks w/Liners
For Small Chambered Alum. Race Heads only
Minimal Alum. Head brinneling
Perf.
Pre-Flattened Steel Wire Comb. Seal
Small Chev. Listing
Steel Core Laminate Const.
Will not fit O.E. type Combustion Chambers
1 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC R3500 equipped with
5.7L V8 Gas OHV
 
1
 
[Head Gasket]
0.051 Nominal Compr. Thickness
1 Per Pkg.
11.2cc Compressed Volume
Bore 4.200
Can use on Alum. Blocks w/Liners
Extra Thick Steel Core Laminate Const.
Extra thick to reduce compression and correct piston-head clearance problems
For Cast Iron or Alum.Heads
Minimal Alum. Head brinneling
Perf.
Pre-Flattened Steel Wire Const.
Small Chev. Listing
 
1991 GMC R3500 equipped with
5.7L V8 Gas OHV [Head Gasket]
0.051 Nominal Compr. Thickness
1 Per Pkg.
11.2cc Compressed Volume
Bore 4.200
Can use on Alum. Blocks w/Liners
Extra Thick Steel Core Laminate Const.
Extra thick to reduce compression and correct piston-head clearance problems
For Cast Iron or Alum.Heads
Minimal Alum. Head brinneling
Perf.
Pre-Flattened Steel Wire Const.
Small Chev. Listing

1 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC R3500 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 R3500 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 R3500 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 R3500 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 R3500 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 R3500 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 R3500 equipped with
5.7L V8 Gas OHV
 
1
 
[Head Gasket]
0.015 Nominal Compr. Thickness
1 Per Pkg.
3.2cc Compressed Volume
Bore 4.100
Do not use on Alum. Blocks w/Liners
Embossed Shim w/precision rubber coating Const. and Comb. Seal
For Cast Iron or Alum.Heads
No Alum. Head brinneling
Perf.
Small Chev. Listing
Use in some sportsman drag race and flat top piston oval track catagories
 
1991 GMC R3500 equipped with
5.7L V8 Gas OHV [Head Gasket]
0.015 Nominal Compr. Thickness
1 Per Pkg.
3.2cc Compressed Volume
Bore 4.100
Do not use on Alum. Blocks w/Liners
Embossed Shim w/precision rubber coating Const. and Comb. Seal
For Cast Iron or Alum.Heads
No Alum. Head brinneling
Perf.
Small Chev. Listing
Use in some sportsman drag race and flat top piston oval track catagories
1 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC R3500 equipped with
7.4L V8 Gas OHV
 
2
 
with PermaTorque Severe Duty
 
1991 GMC R3500 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 R3500 equipped with
6.2L V8 Diesel OHV
 
2
 
Head Bolts Not Included
Head Bolt Replacement Recommended
0.010 (in) Thicker for use when block is refaced
 
1991 GMC R3500 equipped with
6.2L V8 Diesel OHV Head Bolts Not Included
Head Bolt Replacement Recommended
0.010 (in) Thicker for use when block is refaced

2 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC R3500 equipped with
5.7L V8 Gas OHV
 
2
 
4.160in Combustion Chamber Opening
Nirtoseal
w/Contoured Combustion Chamber
w/Stainless Steel Flanges
 
1991 GMC R3500 equipped with
5.7L V8 Gas OHV 4.160in Combustion Chamber Opening
Nirtoseal
w/Contoured Combustion Chamber
w/Stainless Steel Flanges

2 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC R3500 equipped with
5.7L V8 Gas OHV
 
2
 
VR2000
 
1991 GMC R3500 equipped with
5.7L V8 Gas OHV VR2000

2 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC R3500 equipped with
5.7L V8 Gas OHV
 
2
 
Cylindrical Combustion Chamber
Nitroseal
w/Stainless Steel Flanges
 
1991 GMC R3500 equipped with
5.7L V8 Gas OHV Cylindrical Combustion Chamber
Nitroseal
w/Stainless Steel Flanges

2 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehicleFit NotesFitment Notes
1991 GMC R3500 equipped with
6.2L V8 Diesel OHV
 
2
 
Solicor
 
1991 GMC R3500 equipped with
6.2L V8 Diesel OHV Solicor

2 Per Vehicle
Displaying 1 to 25 (of 39 products)