1968 Chevrolet C30 Performance Engines

This Mr. Gasket Rear Main Seal is made from silicone to allow the seal to handle extreme engine oil temperature. It also provides for an upgrade for that leaky rope style seal and is a direct replacement for a rubber main seal. It’s also injection molded for a precise fit.

Product Features:

• Repairs That Leaky Rear Main Sail
• Silicone Rubber to Withstand Extreme Engine Oil Temperatures
• Upgrade for Rope Seal Equipped Cars or Direct Replacement for Rubber Main Seal
• Injection Molded for Precise Fit

This Mr. Gasket Rear Main Seal is made from Viton&reg: Rubber. This style of rubber can handle high temperature like silicone rubber, but with superior abrasion resistance. Its durability and it’s double, offset lip seal design make it recommended for applications that have high engine vacuum, like racing engines that utilize external vacuum pumps for crankcase evacuation.

Product Features:

• Repairs That Leaky Rear Main Sail
• Viton« Rubber Offers Both Abrasion Resistance & High Temperature Tolerance
• Viton® Rubber Offers Both Abrasion Resistance & High Temperature Tolerance
• Upgrade for Rope Seal Equipped Cars or Silicone Rubber Main Seals

Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:

• Fluoroelastomer compound combines optimum resistance to heat, oils and abrasion for longivity.
• Optimizes performance under high crankcase vacuum conditions, elevated temperatures and high RPM levels.
• Not intended for use in emission controlled vehicles.

Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:

• Fluoroelastomer compound combines optimum resistance to heat, oils and abrasion for longevity.
• Optimizes performance under high crankcase vacuum conditions, elevated temperatures and high RPM levels.
• Not intended for use in emission controlled vehicles.
• Not intended for use in emission controlled vehicles.

Mr. Gasket Performance Valve Cover Gaskets are high-density cork/rubber blend gaskets that use evenly sized cork particles distributed evenly throughout the rubber binder. The result is a compressible valve cover gasket without leak paths. These gaskets create a positive seal by controlled swelling of the gasket material when exposed to hot engine oil. Provides excellent flange sealing and durability. For original equipment replacement, high performance street, drag race and oval track use.brbrThese gaskets are .312 inch thick. That’s substantially thicker than stock which can allow for additional valve train clearance. brbrFits Chevrolet 262,265,267,283,307,327,350,400 Gen I Small Block with Perimeter Bolt Valve Covers.

Product Features:

• Provides Excellent Flange Sealing And Durability
• For High-Performance Street, Drag Race & Oval Track Use

Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:

• Die cut silicone rubber gaskets conform to out-of-flat covers
• Great for on-again/off-again situations
• Not intended for use in emission controlled vehicles.

Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:

• Blue Stripe performance cork-rubber gaskets use cork particles evenly distributed throughout a rubber binder resulting in a compressible gasket without leak paths.
• Not intended for use in emission controlled vehicles.

Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:

• Blue Stripe performance cork-rubber gaskets use cork particles evenly distributed throughout a rubber binder resulting in a compressible gasket without leak paths.
• Not intended for use in emission controlled vehicles.

Ultra-Seal is Mr. Gasket premium valve cover gasket material. It’s manufactured from a high density cork and rubber blend with a black latex coat applied to the outside to help seal minor flange irregularites and eliminate oil leakage. It creates a positive seal by controlled swelling of the gasket material when exposed to hot oil. For original equipment replacement, high performance street, drag race and oval track use. Sold as a pair. These gaskets are an extra thick .312 inch which can help with valvetrain clearance.

Product Features:

• Manufactured from high-density cork /rubber blend gasket material
• A black latex rubber coating is applied to outside of gasket to help seal minor flange irregularities and eliminate the possibility of oil leakage
• Creates a positive seal by controlled swelling of the gasket material when exposed to hot engine oil
• For OE replacement, high performance street, drag race and oval track
• An extra thick .312″ which can help with valvetrain clearance

These are high quality gaskets that works well on those hard to seal applications. The low density fiber & rubber blend gasket material seals those minor head imperfections with a low clamp force. At .312 inch, the extra thickness can also offer slightly more clearance for roller rockers. Ideal for all those high performance applications where you take the valve covers off and on a lot, and sticking is a problem.brbrFits all 1965-2000 Chevy Big Blocks: 366,396,402,427,454 including GM (General Motors) Gen VI Crate Engines like the 502 and 572.

Product Features:

• These Are A Cork Rubber Blend
• Extra Thick 5/16 In Creates Positive Seal
• Also Available In Standard Thickness
• For OE Replacement And High Performance Apps

Mr. Gasket High Performance Thermostats are designed to resist large variations of coolant pressure at high RPM (revolutions per minute). This allows them to fully open at correct temperature consistently regardless of engine RPM. The design also provides the high flow that engines operated a higher RPM need. This thermostat also features a copper/brass construction to further resist corrosion. Mr. Gasket High Performance / High Flow Thermostats are suitable for street, drag race, or oval track applications.

Product Features:

• Opens at 160 Degrees
• Designed to Resist Large Variations of Coolant Pressure at High RPM
• Fully opens at Correct Temperature Consistently Regardless of engine RPM
• For High Performance Street, Drag Race, and Oval Track
• Copper & Brass Construction – Resists Corrosion
• High Flow

Mr. Gasket High Performance Thermostats are designed to resist large variations of coolant pressure at high RPM (revolutions per minute). This allows them to fully open at correct temperature consistently regardless of engine RPM. The design also provides the high flow that engines operated a higher RPM need. This thermostat also features a copper/brass construction to further resist corrosion. Mr. Gasket High Performance / High Flow Thermostats are suitable for street, drag race, or oval track applications.

Product Features:

• Opens At 180 Degrees
• Designed to Resist Large Variations of Coolant Pressure at High RPM
• Fully Opens at Correct Temperature Consistently Regardless of Engine RPM
• For High Performance Street, Drag Race, and Oval Track
• Copper & Brass Construction – Resists Corrosion
• High Flow

Mr. Gasket High Performance Thermostats are designed to resist large variations of coolant pressure at high RPM (revolutions per minute). This allows them to fully open at correct temperature consistently regardless of engine RPM. The design also provides the high flow that engines operated a higher RPM need. This thermostat also features a copper/brass construction to further resist corrosion. Mr. Gasket High Performance / High Flow Thermostats are suitable for street, drag race, or oval track applications.

Product Features:

• Opens At 195 Degrees
• Designed to Resist Large Variations of Coolant Pressure at High RPM
• Fully Opens at Correct Temperature Consistently Regardless of Engine RPM
• For High Performance Street, Drag Race, and Oval Track
• Copper & Brass Construction – Resists Corrosion
• High Flow

Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:

• Rigid core, molded silicone rubber gaskets utilize the one-piece molded rubber technology for a perfect fit, ease of installation and include compression limiters to prevent overtightening.
• Not intended for use in emission controlled vehicles.

Manufactured from cellulose/nitrile composition gasket material. A black latex rubber coating is applied to outside of gasket to help seal minor oil pan rail irregularities and eliminate the possibility of oil leakage. Provides excellent sealing and durability. Complete with molded rubber front/rear oil pan seals where applicable. For original equipment replacement, high performance street, drag race and oval track.

Product Features:

• Manufactured from cellulose/nitrile rubber composition gasket material
• Provides excellent sealing and durability
• Complete with molded rubber front/rear oil pan end seals where applicable
• For OE replacement, high performance street, drag race and oval track use
• Graphite Non-Wicking Rubber
• No Cork Particles
• Easy Removal For Disassembly

Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:

• Felcoid/Plus gaskets have a fiber sheet core and a latex rubber coating to eliminate potential leakage paths. The core material resists crushing and splitting, while providing excellent blowout resistance.
• With steel core to provide ultimate excellent blowout resistance.
• Not intended for use in emission controlled vehicles.

Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:

• Rigid core, molded silicone rubber gaskets utilize the one-piece molded rubber technology for a perfect fit, ease of installation and include compression limiters to prevent overtightening.
• Not intended for use in emission controlled vehicles.

Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:

• Felcoid/Plus gaskets have a fiber sheet core and a latex rubber coating to eliminate potential leakage paths. The core material resists crushing and splitting, while providing excellent blowout resistance.
• With steel core to provide ultimate excellent blowout resistance.
• Not intended for use in emission controlled vehicles.

Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:

• Felcoid/Plus gaskets have a fiber sheet core and a latex rubber coating to eliminate potential leakage paths. The core material resists crushing and splitting, while providing excellent blowout resistance.
• With steel core to provide ultimate excellent blowout resistance.
• Not intended for use in emission controlled vehicles.

Manufactured from cellulose and nitrile composition gasket material. A black latex rubber coating is applied to outside of gasket to help seal minor oil pan rail irregularities and eliminate the possibility of oil leakage. Provides excellent sealing and durability. Complete with molded rubber front/rear oil pan seals where applicable. For OE replacement, high performance street, drag race and oval track.

Product Features:

• Made of high temp silicone or nitrile blend rubber
• Torque limiters to prevent over tightening
• One piece molded rubber
• Fits left and right hand dipsticks

Our unique Multi-Layered steel head gasket embossment formation process optimizes the embossment radius, reduces stress points, enhances gasket conformability, and provides uniform clamp load distribution. This all results in superior surface contact between block and cylinder head. All head gasket layers/spacers go through an additional process to significantly reduce forming induced stress. Advantages are reduced brittleness in material, increased flexibility and deformation retention. This stabilizes the gasket, resulting in reduced cylinder bore distortion and improved combustion seal fro the extreme cylinder pressures found in high compression, supercharged and turbocharged applications. A proprietary polymer coating ensures the micro-seal of engine coolant and oil fluids.brbrA typical MLS head gasket requires a smoother (30Ra) surface finish than composite head gaskets. Mr. Gasket’s proprietary polymer coating will seal a surface finish twice as rough (60Ra) as a typical MLS head gasket. For high performance street, drag race and oval track use.

Product Features:

• Gasket bore – 4.060″ Thickness – .040″
• Manufactured from 3-layer premium grade stainless steel and state of the art laser cutting
• Optimized sealing embossments seals extreme cylinder pressure
• Provides excellent stability and reduces cylinder bore distortion.
• Proprietary polymer coating ensures the micro seal of engine coolant and oil fluids.
• Ideal for supercharged, turbocharged, nitrous oxide and extreme compression ratio engines
• For high-performance street, drag race and oval track use

Product Features:

• Head: 4.370″ Bore/0.039″ Thick/9.70cc Vol.
• Intake: 1.82″x2.54″ Port/.060″ Thick
• Exhaust: 1.940″ Round Port
• 5/16″ Valve Cover
• Multi Piece Configuration

Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:

• PROPRIETARY COATING – Nonstick anti-friction coating seals small surface imperfections
• NO RETORQUE DESIGN – Steel core helps eliminate the need for retorquing head bolts
• SUPERIOR SEAL – Precise embossed Printo seal sealing beads at all vital areas to eliminate leak paths
• STRONG AND DURABLE – Features graphite or reinforced fiber facing material and steel armor for strength and durability
• DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces

Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:

• PROPRIETARY COATING – Nonstick anti-friction coating seals small surface imperfections
• NO RETORQUE DESIGN – Steel core helps eliminate the need for retorquing head bolts
• SUPERIOR SEAL – Precise embossed Printoseal sealing beads at all vital areas to eliminate leak paths
• STRONG AND DURABLE – Features graphite or reinforced fiber facing material and steel armor for strength and durability
• DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces

Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions.

Product Features:

• Fel-Pro Performance head gaskets accommodate the high cylinder pressures and cylinder head movement associated with performance engines.
• Inserted within a stainless steel armor surrounding each cylinder, wire ring design provides highly concentrated sealing around the combustion chamber.
• Raises combustion sealing force to roughly three times that of standard head gaskets.
• Steel wire rings for the greatest combustion seal strength.
• Not intended for use in emission controlled vehicles.

Mr. Gasket Steel Shim Cylinder Head Gaskets are for high performance street machines, drag racing and oval track racing. With today’s extreme compression ratios you need stronger more durable gaskets. Mr. Gasket steel shim gaskets are made from .020 inch steel shim stock which is thinner than most composite gaskets increasing engine compression. Stress formed embossments will seal the extreme cylinder pressure.

Product Features:

• Manufactured from .020″ steel shim stock.
• Thinner than composition head gaskets – increases engine compression.
• Stress formed embossments seal extreme cylinder pressures.
• For high performance street, drag race and oval track use.

Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:

• Fel-Pro Performance head gaskets accommodate the high cylinder pressures and cylinder head movement associated with performance engines.
• Inserted within a stainless steel armor surrounding each cylinder, wire ring design provides highly concentrated sealing around the combustion chamber.
• Raises combustion sealing force to roughly three times that of standard head gaskets.
• Steel wire rings for the greatest combustion seal strength.
• Not intended for use in emission controlled vehicles.

Mr. Gasket Ultra-Seal Head Gaskets are a five layer (graphite core/perforated steel outer layers) composite construction. The graphite core has excellent thermoconductivity (transfers heat) away from hot spots in head preventing gasket burn-out. They provide excellent stability, compressibility and high temperature endurance. A high temperature silicone coating ensures sealing of engine fluids. Compatible with cast iron or aluminum heads, they will not brinell (indent) aluminum cylinder heads. Suitable for high performance street, drag race and oval track use. Sold individually.brbrGasket Bore 4.130 inch, Compressed thickness 0.055 inch

Product Features:

• Five layer (graphite core/perforated steel outer layers) composite construction
• Graphite core is excellent transfering heat away from hot spots in head preventing gasket burn-out.
• Provides excellent stability, compressibility and high temperature endurance
• Coated with high temperature silicone to ensure sealing of engine fluids
• Will not brinell (indent) aluminum cylinder heads
• For high performance street, drag race and oval track use
• Compatible w/High Octane Fuel
• Compatible With Exotic Fuel