Gaskets & Seals - Cylinder Head Gaskets

Competition Marine™ Seal Cylinder Head Gasket - BBC Gen 4, 4.625 Bore
Your Price:
$88.99

Competition Marine Seal Cylinder Head Gasket - BBC Gen 4, 4.625 Bore

300-17065

Competition Marine™ Seal Cylinder Head Gasket - Big Block Chevy Gen 4, 4.625 Bore- Sold Each

Multi-layer gasket technology has long been a hidden SECRET of the professional ranking Indy and NASCAR racing engine builders. This technology offers advantages not available from any other forms of gasket design. The increased demand for more power has caused increased combustion temperatures, movement between heads and engine blocks under extreme cylinder pressure. By using "multi-layer" technology individual sealing sheets withstand engine loads that until now were never capable of containing. If the very best possible gasket is what your looking for settle for nothing less than "multi-layer" technology.

  • More resistant to thermal expansion
  • The best combustion seal anywhere
  • Strategically embossed sealing paths
  • Primary stainless steel sealing sheet

With over 40 years of marine engine manufacturing experience under our belts, building high performance and original equipment engines has provided us the insight needed to develop what today is considered to be the marine industries finest gaskets available today. Dependability and durability in both fresh water and harsh salt water environments. Marine engines operate inconditions far more severe than their automotive counterparts from cool water rushing in against scalding hot cylinder walls to exhaust temperatures exceeding 2,000 degrees Fahrenheit. Rest assured each Hardin Marine seal and Xtreme Marine Seal gasket was designed for its specific purpose. While marine seal gaskets are the perfect choice for an OEM application the Xtreme Seal gaskets are strong enough to be chosen by the world's leading offshore engine manufacturers.

SOLD EACH!


Cylinder Head Gasket - Big Block Chevy 8.1L 496, 4.20 Bore (Left Side)
Your Price:
$89.99

Cylinder Head Gasket - Big Block Chevy 8.1L 496, 4.280 Bore (Left Side)

302-C5764-051

"Competition" Marine™ Seal Cylinder Head Gasket With "Multi-Layer" Cometic Technology
Big Block Chevy 8.1L 496, 4.280 Bore (Left Side)- Sold Each

Multi-layer gasket technology has long been a hidden SECRET of the professional ranking Indy and NASCAR racing engine builders. This technology offers advantages not available from any other forms of gasket design. The increased demand for more power has caused increased combustion temperatures, movement between heads and engine blocks under extreme cylinder pressure. By using "multi-layer" technology individual sealing sheets withstand engine loads that until now were never capable of containing. If the very best possible gasket is what your looking for settle for nothing less than "multi-layer" technology.

  • More resistant to thermal expansion
  • The best combustion seal anywhere
  • Strategically embossed sealing paths
  • Primary stainless steel sealing sheet

With over 40 years of marine engine manufacturing experience under our belts, building high performance and original equipment engines has provided us the insight needed to develop what today is considered to be the marine industries finest gaskets available today. Dependability and durability in both fresh water and harsh salt water environments. Marine engines operate in conditions far more severe than their automotive counterparts from cool water rushing in against scalding hot cylinder walls to exhaust temperatures exceeding 2,000 degrees Fahrenheit. Rest assured each Hardin Marine seal and Xtreme Marine Seal gasket was designed for its specific purpose. While marine seal gaskets are the perfect choice for an OEM application the Xtreme Seal gaskets are strong enough to be chosen by the world's leading offshore engine manufacturers.

SOLD EACH!


Cylinder Head Gasket - Big Block Chevy 8.1L 496, 4.20 Bore (Right Side)
Your Price:
$89.99

Cylinder Head Gasket - Big Block Chevy 8.1L 496, 4.280 Bore (Right Side)

302-C5761-051

"Competition" Marine™ Seal Cylinder Head Gasket With "Multi-Layer" Cometic Technology
Big Block Chevy 8.1L 496, 4.280 Bore (Right Side)- Sold Each

Multi-layer gasket technology has long been a hidden SECRET of the professional ranking Indy and NASCAR racing engine builders. This technology offers advantages not available from any other forms of gasket design. The increased demand for more power has caused increased combustion temperatures, movement between heads and engine blocks under extreme cylinder pressure. By using "multi-layer" technology individual sealing sheets withstand engine loads that until now were never capable of containing. If the very best possible gasket is what your looking for settle for nothing less than "multi-layer" technology.

  • More resistant to thermal expansion
  • The best combustion seal anywhere
  • Strategically embossed sealing paths
  • Primary stainless steel sealing sheet

With over 40 years of marine engine manufacturing experience under our belts, building high performance and original equipment engines has provided us the insight needed to develop what today is considered to be the marine industries finest gaskets available today. Dependability and durability in both fresh water and harsh salt water environments. Marine engines operate in conditions far more severe than their automotive counterparts from cool water rushing in against scalding hot cylinder walls to exhaust temperatures exceeding 2,000 degrees Fahrenheit. Rest assured each Hardin Marine seal and Xtreme Marine Seal gasket was designed for its specific purpose. While marine seal gaskets are the perfect choice for an OEM application the Xtreme Seal gaskets are strong enough to be chosen by the world's leading offshore engine manufacturers.

SOLD EACH!


Cylinder Head Gasket - Big Block Chevy 8.1L 496, 4.35 Bore (Left Side)
Your Price:
$89.99

Cylinder Head Gasket - Big Block Chevy 8.1L 496, 4.35 Bore (Left Side)

302-C5765-051

"Competition" Marine™ Seal Cylinder Head Gasket With "Multi-Layer" Cometic Technology
Big Block Chevy 8.1L 496, 4.35 Bore (Left Side)- Sold Each

Multi-layer gasket technology has long been a hidden SECRET of the professional ranking Indy and NASCAR racing engine builders. This technology offers advantages not available from any other forms of gasket design. The increased demand for more power has caused increased combustion temperatures, movement between heads and engine blocks under extreme cylinder pressure. By using "multi-layer" technology individual sealing sheets withstand engine loads that until now were never capable of containing. If the very best possible gasket is what your looking for settle for nothing less than "multi-layer" technology.

  • More resistant to thermal expansion
  • The best combustion seal anywhere
  • Strategically embossed sealing paths
  • Primary stainless steel sealing sheet

With over 40 years of marine engine manufacturing experience under our belts, building high performance and original equipment engines has provided us the insight needed to develop what today is considered to be the marine industries finest gaskets available today. Dependability and durability in both fresh water and harsh salt water environments. Marine engines operate in conditions far more severe than their automotive counterparts from cool water rushing in against scalding hot cylinder walls to exhaust temperatures exceeding 2,000 degrees Fahrenheit. Rest assured each Hardin Marine seal and Xtreme Marine Seal gasket was designed for its specific purpose. While marine seal gaskets are the perfect choice for an OEM application the Xtreme Seal gaskets are strong enough to be chosen by the world's leading offshore engine manufacturers.

SOLD EACH!


Cylinder Head Gasket - Big Block Chevy 8.1L 496, 4.35 Bore (Right Side)
Your Price:
$89.99

Cylinder Head Gasket - Big Block Chevy 8.1L 496, 4.35 Bore (Right Side)

302-C5762-051

"Competition" Marine™ Seal Cylinder Head Gasket With "Multi-Layer" Cometic Technology
Big Block Chevy 8.1L 496, 4.35 Bore (Right Side)- Sold Each

Multi-layer gasket technology has long been a hidden SECRET of the professional ranking Indy and NASCAR racing engine builders. This technology offers advantages not available from any other forms of gasket design. The increased demand for more power has caused increased combustion temperatures, movement between heads and engine blocks under extreme cylinder pressure. By using "multi-layer" technology individual sealing sheets withstand engine loads that until now were never capable of containing. If the very best possible gasket is what your looking for settle for nothing less than "multi-layer" technology.

  • More resistant to thermal expansion
  • The best combustion seal anywhere
  • Strategically embossed sealing paths
  • Primary stainless steel sealing sheet

With over 40 years of marine engine manufacturing experience under our belts, building high performance and original equipment engines has provided us the insight needed to develop what today is considered to be the marine industries finest gaskets available today. Dependability and durability in both fresh water and harsh salt water environments. Marine engines operate in conditions far more severe than their automotive counterparts from cool water rushing in against scalding hot cylinder walls to exhaust temperatures exceeding 2,000 degrees Fahrenheit. Rest assured each Hardin Marine seal and Xtreme Marine Seal gasket was designed for its specific purpose. While marine seal gaskets are the perfect choice for an OEM application the Xtreme Seal gaskets are strong enough to be chosen by the world's leading offshore engine manufacturers.

SOLD EACH!


Cylinder Head Gasket - Big Block Chevy Gen 4, 4.500 Bore
Your Price:
$89.99

Cylinder Head Gasket - Big Block Chevy Gen 4, 4.500 Bore

302-C5330-040

"Competition" Marine™ Seal Cylinder Head Gasket With "Multi-Layer" Cometic Technology - Big Block Chevy Gen 4, 4.500 Bore- Sold Each

Multi-layer gasket technology has long been a hidden SECRET of the professional ranking Indy and NASCAR racing engine builders. This technology offers advantages not available from any other forms of gasket design. The increased demand for more power has caused increased combustion temperatures, movement between heads and engine blocks under extreme cylinder pressure. By using "multi-layer" technology individual sealing sheets withstand engine loads that until now were never capable of containing. If the very best possible gasket is what your looking for settle for nothing less than "multi-layer" technology.

  • More resistant to thermal expansion
  • The best combustion seal anywhere
  • Strategically embossed sealing paths
  • Primary stainless steel sealing sheet

With over 40 years of marine engine manufacturing experience under our belts, building high performance and original equipment engines has provided us the insight needed to develop what today is considered to be the marine industries finest gaskets available today. Dependability and durability in both fresh water and harsh salt water environments. Marine engines operate in conditions far more severe than their automotive counterparts from cool water rushing in against scalding hot cylinder walls to exhaust temperatures exceeding 2,000 degrees Fahrenheit. Rest assured each Hardin Marine seal and Xtreme Marine Seal gasket was designed for its specific purpose. While marine seal gaskets are the perfect choice for an OEM application the Xtreme Seal gaskets are strong enough to be chosen by the world's leading offshore engine manufacturers.

SOLD EACH!


Cylinder Head Gasket - Big Block Chevy Gen 5/6, 4.500 Bore
Your Price:
$89.99

Cylinder Head Gasket - Big Block Chevy Gen 5/6, 4.500 Bore

302-C5333-040

"Competition" Marine™ Seal Cylinder Head Gasket With "Multi-Layer" Cometic Technology - Big Block Chevy Gen 5/6, 4.500 Bore- Sold Each

Multi-layer gasket technology has long been a hidden SECRET of the professional ranking Indy and NASCAR racing engine builders. This technology offers advantages not available from any other forms of gasket design. The increased demand for more power has caused increased combustion temperatures, movement between heads and engine blocks under extreme cylinder pressure. By using "multi-layer" technology individual sealing sheets withstand engine loads that until now were never capable of containing. If the very best possible gasket is what your looking for settle for nothing less than "multi-layer" technology.

  • More resistant to thermal expansion
  • The best combustion seal anywhere
  • Strategically embossed sealing paths
  • Primary stainless steel sealing sheet

With over 40 years of marine engine manufacturing experience under our belts, building high performance and original equipment engines has provided us the insight needed to develop what today is considered to be the marine industries finest gaskets available today. Dependability and durability in both fresh water and harsh salt water environments. Marine engines operate in conditions far more severe than their automotive counterparts from cool water rushing in against scalding hot cylinder walls to exhaust temperatures exceeding 2,000 degrees Fahrenheit. Rest assured each Hardin Marine seal and Xtreme Marine Seal gasket was designed for its specific purpose. While marine seal gaskets are the perfect choice for an OEM application the Xtreme Seal gaskets are strong enough to be chosen by the world's leading offshore engine manufacturers.

SOLD EACH!


Cylinder Head Gasket - Big Block Chevy Gen 5/6, 4.500 Bore
Your Price:
$89.99

Cylinder Head Gasket - Big Block Chevy Gen 5/6, 4.630 Bore

302-C5334-040

"Competition" Marine™ Seal Cylinder Head Gasket With"Multi-Layer" Cometic Technology - Big Block Chevy Gen 5/6, 4.630 Bore- Sold Each

Multi-layer gasket technology has long been a hidden SECRET of the professional ranking Indy and NASCAR racing engine builders. This technology offers advantages not available from any other forms of gasket design. The increased demand for more power has caused increased combustion temperatures, movement between heads and engine blocks under extreme cylinder pressure. By using "multi-layer" technology individual sealing sheets withstand engine loads that until now were never capable of containing. If the very best possible gasket is what your looking for settle for nothing less than "multi-layer" technology.

  • More resistant to thermal expansion
  • The best combustion seal anywhere
  • Strategically embossed sealing paths
  • Primary stainless steel sealing sheet

With over 40 years of marine engine manufacturing experience under our belts, building high performance and original equipment engines has provided us the insight needed to develop what today is considered to be the marine industries finest gaskets available today. Dependability and durability in both fresh water and harsh salt water environments. Marine engines operate in conditions far more severe than their automotive counterparts from cool water rushing in against scalding hot cylinder walls to exhaust temperatures exceeding 2,000 degrees Fahrenheit. Rest assured each Hardin Marine seal and Xtreme Marine Seal gasket was designed for its specific purpose. While marine seal gaskets are the perfect choice for an OEM application the Xtreme Seal gaskets are strong enough to be chosen by the world's leading offshore engine manufacturers.

SOLD EACH!


Xtreme Marine™ Seal Cylinder Head Gasket - BBC Gen 4 454, 4.370 Bore
Your Price:
$52.99

Xtreme Marine Seal Cylinder Head Gasket - BBC Gen 4 454, 4.370 Bore

300-17040

Xtreme Marine™ Seal Cylinder Head Gasket - Big Block Chevy Gen 4 454, 4.370 Bore- Sold Each

The most demanding sealing job of any marine engine is the sealing of the cylinder head to the engine block, and for that reason we have incorporated the finest gasket core and combustion armors along with 300 series stainless for corrosion protection into our product line. This non-retorque style head gasket is the perfect choice for today's high performance recreational power boater.

  • Excellent corrosion protection
  • Eliminate hot spots
  • No retorque required

With over 40 years of marine engine manufacturing experience under our belts, building high performance and original equipment engines has provided us the insight needed to develop what today is considered to be the marine industries finest gaskets available today. Dependability and durability in both fresh water and harsh salt water environments. Marine engines operate in conditions far more severe than their automotive counterparts from cool water rushing in against scalding hot cylinder walls to exhaust temperatures exceeding 2,000 degrees Fahrenheit. Rest assured each Hardin Marine seal and Xtreme Marine Seal gasket was designed for its specific purpose. While marine seal gaskets are the perfect choice for an OEM application the Xtreme Seal gaskets are strong enough to be chosen by the world's leading offshore engine manufacturers.

SOLD EACH!


Xtreme Marine™ Seal Cylinder Head Gasket - BBC Gen 4 540/572, 4.63 Bore
Your Price:
$64.99

Xtreme Marine Seal Cylinder Head Gasket - BBC Gen 4 540/572, 4.63 Bore

300-17049

Xtreme Marine™ Seal Cylinder Head Gasket - Big Block Chevy Gen 4 540/572, 4.63 Bore- Sold Each

The most demanding sealing job of any marine engine is the sealing of the cylinder head to the engine block, and for that reason we have incorporated the finest gasket core and combustion armors along with 300 series stainless for corrosion protection into our product line. This non-retorque style head gasket is the perfect choice for today's high performance recreational power boater.

  • Excellent corrosion protection
  • Eliminate hot spots
  • No retorque required

With over 40 years of marine engine manufacturing experience under our belts, building high performance and original equipment engines has provided us the insight needed to develop what today is considered to be the marine industries finest gaskets available today. Dependability and durability in both fresh water and harsh salt water environments. Marine engines operate in conditions far more severe than their automotive counterparts from cool water rushing in against scalding hot cylinder walls to exhaust temperatures exceeding 2,000 degrees Fahrenheit. Rest assured each Hardin Marine seal and Xtreme Marine Seal gasket was designed for its specific purpose. While marine seal gaskets are the perfect choice for an OEM application the Xtreme Seal gaskets are strong enough to be chosen by the world's leading offshore engine manufacturers.

SOLD EACH!


Xtreme Marine™ Seal Cylinder Head Gasket - BBC Gen 5 & 6 454, 4.370 Bore
Your Price:
$51.99

Xtreme Marine Seal Cylinder Head Gasket - BBC Gen 5 & 6 454, 4.370 Bore

300-17042

Xtreme Marine™ Seal Cylinder Head Gasket - Big Block Chevy Gen 5 & 6 454, 4.370 Bore- Sold Each

The most demanding sealing job of any marine engine is the sealing of the cylinder head to the engine block, and for that reason we have incorporated the finest gasket core and combustion armors along with 300 series stainless for corrosion protection into our product line. This non-retorque style head gasket is the perfect choice for today's high performance recreational power boater.

  • Excellent corrosion protection
  • Eliminate hot spots
  • No retorque required

With over 40 years of marine engine manufacturing experience under our belts, building high performance and original equipment engines has provided us the insight needed to develop what today is considered to be the marine industries finest gaskets available today. Dependability and durability in both fresh water and harsh salt water environments. Marine engines operate in conditions far more severe than their automotive counterparts from cool water rushing in against scalding hot cylinder walls to exhaust temperatures exceeding 2,000 degrees Fahrenheit. Rest assured each Hardin Marine seal and Xtreme Marine Seal gasket was designed for its specific purpose. While marine seal gaskets are the perfect choice for an OEM application the Xtreme Seal gaskets are strong enough to be chosen by the world's leading offshore engine manufacturers.

SOLD EACH!


Xtreme Marine™ Seal Cylinder Head Gasket - BBC Gen 5 & 6 502, 4.540 Bore
Your Price:
$69.99

Xtreme Marine Seal Cylinder Head Gasket - BBC Gen 5 & 6 502, 4.540 Bore

300-17048

Xtreme Marine™ Seal Cylinder Head Gasket - Big Block Chevy Gen 5 & 6 502, 4.540 Bore- Sold Each

The most demanding sealing job of any marine engine is the sealing of the cylinder head to the engine block, and for that reason we have incorporated the finest gasket core and combustion armors along with 300 series stainless for corrosion protection into our product line. This non-retorque style head gasket is the perfect choice for today's high performance recreational power boater.

  • Excellent corrosion protection
  • Eliminate hot spots
  • No retorque required

With over 40 years of marine engine manufacturing experience under our belts, building high performance and original equipment engines has provided us the insight needed to develop what today is considered to be the marine industries finest gaskets available today. Dependability and durability in both fresh water and harsh salt water environments. Marine engines operate in conditions far more severe than their automotive counterparts from cool water rushing in against scalding hot cylinder walls to exhaust temperatures exceeding 2,000 degrees Fahrenheit. Rest assured each Hardin Marine seal and Xtreme Marine Seal gasket was designed for its specific purpose. While marine seal gaskets are the perfect choice for an OEM application the Xtreme Seal gaskets are strong enough to be chosen by the world's leading offshore engine manufacturers.

SOLD EACH!


Xtreme Marine™ Seal Cylinder Head Gasket - BBF 460 Non-Cobra Jet, 4.500 Bore
Your Price:
$59.99

Xtreme Marine Seal Cylinder Head Gasket - BBF 460 Non-Cobra Jet, 4.500 Bore

300-17068

Xtreme Marine™ Seal Cylinder Head Gasket - Big Block Ford 460 Non-Cobra Jet, 4.500 Bore- Sold Each

The most demanding sealing job of any marine engine is the sealing of the cylinder head to the engine block, and for that reason we have incorporated the finest gasket core and combustion armors along with 300 series stainless for corrosion protection into our product line. This non-retorque style head gasket is the perfect choice for today's high performance recreational power boater.

  • Excellent corrosion protection
  • Eliminate hot spots
  • No retorque required

With over 40 years of marine engine manufacturing experience under our belts, building high performance and original equipment engines has provided us the insight needed to develop what today is considered to be the marine industries finest gaskets available today. Dependability and durability in both fresh water and harsh salt water environments. Marine engines operate in conditions far more severe than their automotive counterparts from cool water rushing in against scalding hot cylinder walls to exhaust temperatures exceeding 2,000 degrees Fahrenheit. Rest assured each Hardin Marine seal and Xtreme Marine Seal gasket was designed for its specific purpose. While marine seal gaskets are the perfect choice for an OEM application the Xtreme Seal gaskets are strong enough to be chosen by the world's leading offshore engine manufacturers.

SOLD EACH!


Xtreme Marine™ Seal Cylinder Head Gasket - Oldsmobile 455, 4.250 Bor
Your Price:
$109.99

Xtreme Marine Seal Cylinder Head Gasket - Oldsmobile 455, 4.250 Bor

300-17788

Xtreme Marine™ Seal Cylinder Head Gasket - Oldsmobile 455, 4.250 Bore- Sold Each

The most demanding sealing job of any marine engine is the sealing of the cylinder head to the engine block, and for that reason we have incorporated the finest gasket core and combustion armors along with 300 series stainless for corrosion protection into our product line. This non-retorque style head gasket is the perfect choice for today's high performance recreational power boater.

  • Excellent corrosion protection
  • Eliminate hot spots
  • No retorque required

With over 40 years of marine engine manufacturing experience under our belts, building high performance and original equipment engines has provided us the insight needed to develop what today is considered to be the marine industries finest gaskets available today. Dependability and durability in both fresh water and harsh salt water environments. Marine engines operate in conditions far more severe than their automotive counterparts from cool water rushing in against scalding hot cylinder walls to exhaust temperatures exceeding 2,000 degrees Fahrenheit. Rest assured each Hardin Marine seal and Xtreme Marine Seal gasket was designed for its specific purpose. While marine seal gaskets are the perfect choice for an OEM application the Xtreme Seal gaskets are strong enough to be chosen by the world's leading offshore engine manufacturers.

SOLD EACH!


Xtreme Marine™ Seal Cylinder Head Gasket - SBC, 3.840 Bore, 305 C.I.
Your Price:
$41.99

Xtreme Marine Seal Cylinder Head Gasket - SBC, 3.840 Bore, 305 C.I.

300-17020

Xtreme Marine™ Seal Cylinder Head Gasket - Small Block Chevy, 3.840 Bore, 305 C.I.- Sold Each

The most demanding sealing job of any marine engine is the sealing of the cylinder head to the engine block, and for that reason we have incorporated the finest gasket core and combustion armors along with 300 series stainless for corrosion protection into our product line. This non-retorque style head gasket is the perfect choice for today's high performance recreational power boater.

  • Excellent corrosion protection
  • Eliminate hot spots
  • No retorque required

With over 40 years of marine engine manufacturing experience under our belts, building high performance and original equipment engines has provided us the insight needed to develop what today is considered to be the marine industries finest gaskets available today. Dependability and durability in both fresh water and harsh salt water environments. Marine engines operate in conditions far more severe than their automotive counterparts from cool water rushing in against scalding hot cylinder walls to exhaust temperatures exceeding 2,000 degrees Fahrenheit. Rest assured each Hardin Marine seal and Xtreme Marine Seal gasket was designed for its specific purpose. While marine seal gaskets are the perfect choice for an OEM application the Xtreme Seal gaskets are strong enough to be chosen by the world's leading offshore engine manufacturers.

SOLD EACH!


Xtreme Marine™ Seal Cylinder Head Gasket - SBC, 4.125 Bore
Your Price:
$44.99

Xtreme Marine Seal Cylinder Head Gasket - SBC, 4.125 Bore

300-17030

Xtreme Marine™ Seal Cylinder Head Gasket - Small Block Chevy, 4.125 Bore- Sold Each

The most demanding sealing job of any marine engine is the sealing of the cylinder head to the engine block, and for that reason we have incorporated the finest gasket core and combustion armors along with 300 series stainless for corrosion protection into our product line. This non-retorque style head gasket is the perfect choice for today's high performance recreational power boater.

  • Excellent corrosion protection
  • Eliminate hot spots
  • No retorque required

With over 40 years of marine engine manufacturing experience under our belts, building high performance and original equipment engines has provided us the insight needed to develop what today is considered to be the marine industries finest gaskets available today. Dependability and durability in both fresh water and harsh salt water environments. Marine engines operate in conditions far more severe than their automotive counterparts from cool water rushing in against scalding hot cylinder walls to exhaust temperatures exceeding 2,000 degrees Fahrenheit. Rest assured each Hardin Marine seal and Xtreme Marine Seal gasket was designed for its specific purpose. While marine seal gaskets are the perfect choice for an OEM application the Xtreme Seal gaskets are strong enough to be chosen by the world's leading offshore engine manufacturers.

SOLD EACH!