1981 Chevy G-Series Performance Thermostat Housing & Filler Necks

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    • Meziere Enterprises® - Low Profile Swivel Water Neck
      (0 reviews)
      # 1216457890
      Chevy G-Series 5.0L / 5.7L 1981, Low Profile Swivel Water Neck by Meziere Enterprises®. Outlet Size: 1.5". Performance, sophistication and durability are by no means all the benefits you'll get if you purchase this product by Meziere...
      Powerful and efficient designExtended service life
      +1
      $129.49
    • Moroso® - Engine Coolant Filler Neck
      (0 reviews)
      # 1311216479
      Chevy G-Series 5.7L 1981, Engine Coolant Filler Neck by Moroso®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide...
      High quality at an affordable priceBuilt to match your exact requirements
      $89.26 - $95.53
    • Canton Racing® - Water Neck Top with Bleeder
      (0 reviews)
      # mpn359113239
      Chevy G-Series 5.0L / 5.7L with Chevy Small Block Gen I 1981, Water Neck Top with Bleeder by Canton Racing®. Material: Aluminum. Finish: Black Anodized. Increase the life of your vehicle's engine by keeping your cooling system in top...
      Made from high-grade materialsProvides efficient performance
      $25.00
    • Meziere Enterprises® - Fixed Water Neck
      (0 reviews)
      # 1216457886
      Chevy G-Series 5.7L 1981, Fixed Water Neck by Meziere Enterprises®. Performance, sophistication and durability are by no means all the benefits you'll get if you purchase this product by Meziere Enterprises. Designed to take the...
      Powerful and efficient designExtended service life
      +2
      $106.49 - $131.54
    • Meziere Enterprises® - Swivel Water Neck
      (0 reviews)
      # 1216457888
      Chevy G-Series 5.0L / 5.7L 1981, Swivel Water Neck by Meziere Enterprises®. Performance, sophistication and durability are by no means all the benefits you'll get if you purchase this product by Meziere Enterprises. Designed to take the...
      Powerful and efficient designExtended service life
      +2
      $81.43 - $100.22
    • Meziere Enterprises® - Water Neck
      (0 reviews)
      # 1216457881
      Chevy G-Series 5.0L / 5.7L 1981, Water Neck by Meziere Enterprises®. Performance, sophistication and durability are by no means all the benefits you'll get if you purchase this product by Meziere Enterprises. Designed to take the...
      Powerful and efficient designExtended service life
      +3
      $40.09 - $55.12
    • Meziere Enterprises® - Water Neck Spacer
      (0 reviews)
      # 1216457878
      Chevy G-Series 5.0L / 5.7L 1981, Water Neck Spacer by Meziere Enterprises®. Performance, sophistication and durability are by no means all the benefits you'll get if you purchase this product by Meziere Enterprises. Designed to take the...
      Powerful and efficient designExtended service life
      $31.32 - $50.11
    • Milodon® - Water Outlet Restrictors
      (0 reviews)
      # mpn3444261089
      Chevy G-Series 5.0L / 5.7L with Chevy Small Block Engine 1981, Water Outlet Restrictors by Milodon®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from...
      Painstakingly designed to meet your racing needsState-of-the-art manufacturing technology
      $11.95
    • Mr. Gasket® - Water Outlet Gasket
      (0 reviews)
      # 1216457896
      Chevy G-Series 5.0L / 5.7L 1981, Water Outlet Gasket by Mr. Gasket®. Keeping your engine cool is pretty important, so Mr. Gasket has a full line of cooling system accessories. Whether it’s a simple, plain-Jane thermostat installed...
      Requires no gasket sealerMade of high quality materials
      $3.28 - $19.92
    • ARP® - Thermostat Housing Bolt Kit
      (0 reviews)
      # 1216457898
      Chevy G-Series 5.0L / 5.7L 1981, Thermostat Housing Bolt Kit by ARP®. Quantity: Set of 3. Thread: 3/8". UHL: 1.000"/2.000". To keep your engine cool and improve your vehicle's performance, this product is just the right solution....
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $6.63 - $8.49
    • Canton Racing® - Racer Water Neck
      (0 reviews)
      # 1216457894
      Chevy G-Series 5.0L / 5.7L with Chevy Small Block Gen I 1981, Racer Water Neck by Canton Racing®. Material: Billet Aluminum. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty...
      Made from high-grade materialsProvides efficient performance
      $66.00 - $138.00
    • ACDelco® - Professional™ Engine Coolant Thermostat
      (0 reviews)
      # 71624726
      Chevy G-Series 1981, Professional™ Engine Coolant Thermostat by ACDelco®. ACDelco has a Thermostat and Cap for most GM vehicles on the road today. Engineered to work with your car, truck or SUV, ACDelco Professional Thermostats come...
      Heavier-duty components and greater flow rates than standard-line thermostats.Designed to be OE-like.
      $2.03 - $7.31
    • Dorman® - Engine Coolant Thermostat Housing
      (0 reviews)
      # 1216433887
      Chevy G-Series 1981, Engine Coolant Thermostat Housing by Dorman®. Material: Metal. Bolt Hole Diameter: 0.313". Quantity: 2 Bolt Hole. Finish: Natural. Re-engineered to address common failure points in the original equipment, Dorman’s...
      Direct replacement for a proper fit every timeHoses slide on for easy installation
      $9.88 - $10.30
    • Gates® - Engine Coolant Economy Thermostat
      (0 reviews)
      # 1216433881
      Chevy G-Series 1981, Engine Coolant Economy Thermostat by Gates®. Flange Diameter: 2.12". If you want to keep your vehicle safe on the road for many years to come, go with this Gates product. Developed with the utmost attention to...
      Great design and functionMade from sturdy materials
      $3.22 - $3.51
    • Gates® - Engine Coolant OE Type Thermostat
      (0 reviews)
      # 1216433878
      Chevy G-Series 1981, Engine Coolant OE Type Thermostat by Gates®. If you want to keep your vehicle safe on the road for many years to come, go with this Gates product. Developed with the utmost attention to detail and manufactured from...
      Great design and functionMade from sturdy materials
      $3.81 - $3.98
    • Gates® - Engine Coolant Premium Thermostat
      (0 reviews)
      # 1216433875
      Chevy G-Series 1981, Engine Coolant Premium Thermostat by Gates®. Flange Diameter: 2.13". If you want to keep your vehicle safe on the road for many years to come, go with this Gates product. Developed with the utmost attention to...
      Great design and functionMade from sturdy materials
      $5.19 - $5.29
    • Stant® - Engine Coolant Economy Thermostat
      (0 reviews)
      # 1216433872
      Chevy G-Series 1981, Engine Coolant Economy Thermostat without Check Valves and Seal by Stant®. Design: Reverse Poppet. Depth from Flange: 0.78". Flange Diameter: 2.125". Height from Flange: 0.88". Get fast engine warm-up and dependable...
      Quality construction ensures exact fit and prolonged service life.Stainless steel bridge with channel-design for strength and rigidity.
      $1.87
    • Stant® - Engine Coolant OE Type Thermostat
      (0 reviews)
      # 1216433867
      Chevy G-Series 1981, Engine Coolant OE Type Thermostat without Gaskets, Check Valves and Seal by Stant®. Design: Reverse Poppet. Depth from Flange: 0.78". Flange Diameter: 2.125". Height from Flange: 0.8". Get fast engine warm-up and...
      Quality construction ensures exact fit and prolonged service life.Stainless steel bridge with channel-design for strength and rigidity.
      $2.54 - $3.54
    • Stant® - Engine Coolant Premium Thermostat
      (0 reviews)
      # 1216433863
      Chevy G-Series 1981, Engine Coolant Premium Thermostat without Check Valves and Seal by Stant®. Design: Superstat. Depth from Flange: 0.91". Flange Diameter: 2.125". Height from Flange: 0.91". Get fast engine warm-up and dependable...
      Quality construction ensures exact fit and prolonged service life.Stainless steel bridge with channel-design for strength and rigidity.
      $4.78 - $4.83
    • Four Seasons® - Engine Coolant Water Outlet w/o Thermostat
      (0 reviews)
      # 1287470913
      Chevy G-Series 1981, Engine Coolant Water Outlet without Thermostat by Four Seasons®. Material: Aluminum. All products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of car parts...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $10.66 - $12.78
    • ACDelco® - Professional™ Engine Coolant Thermostat Housing Gasket
      (0 reviews)
      # 761864455
      Chevy G-Series 1981, Professional™ Engine Coolant Thermostat Housing Gasket by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $0.25 - $0.26
    • Fel-Pro® - Engine Coolant Thermostat Housing Gasket
      (0 reviews)
      # 761702682
      Chevy G-Series 1981, Engine Coolant Thermostat Housing Gasket by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering...
      Direct OEM replacement for a proper fitEnsures reliable sealing performance
      $1.14 - $1.17
    • Fel-Pro® - Engine Coolant Water Outlet Gasket
      (1 review)
      # 1216433884
      Chevy G-Series 1981, Engine Coolant Water Outlet Gasket by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the...
      Quality that you can trustValidated for fit, form and function
      $0.71 - $9.07
    • Stant® - Engine Coolant Thermostat Housing Gasket
      (0 reviews)
      # mpn2404829682
      Chevy G-Series 5.0L / 5.7L 1981, Engine Coolant Thermostat Housing Gasket by Stant®. Bolt Hole Diameter: 1.81". Cut installation time by as much as 50% with Stat Lok® adhesive backed thermostat gaskets. They’ll hold the thermostat in...
      Gaskets are cut to specific application requirementsStat Lok® Gaskets have adhesive backs to aid installation
      $0.34
    • Victor Reinz® - Engine Coolant Thermostat Housing Gasket
      (0 reviews)
      # mpn589686
      Chevy G-Series 4.1L 1981, Engine Coolant Thermostat Housing Gasket by Victor Reinz®. Location: Housing to Head. Material: Paper. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $0.66
    • Victor Reinz® - Engine Coolant Water Outlet Gasket
      (0 reviews)
      # 1216457900
      Chevy G-Series 5.0L / 5.7L 1981, Engine Coolant Water Outlet Gasket by Victor Reinz®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $0.83 - $9.07
    • MotoRad® - Engine Coolant Thermostat Housing Gasket
      (0 reviews)
      # 912040860
      Chevy G-Series 1981, Engine Coolant Thermostat Housing Gasket by MotoRad®. MotoRad seals and gaskets are made from high quality materials suitable for resistance to high temperatures and engine coolant to maintain a superior, long...
      Made of High quality materialsResistance to high tempertures
      $0.26 - $0.29
    • Apex Auto® - Engine Coolant Water Outlet Gasket
      (0 reviews)
      # mpn4482322405
      Chevy G-Series 5.0L / 5.7L 1981, Engine Coolant Water Outlet Gasket by Apex Auto®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly...
      Quick accurate delivery with excellent fill-rateExcellent inventory availability
      $0.62
    • Gates® - Engine Coolant Thermostat Housing Gasket
      (0 reviews)
      # mpn4563352781
      Chevy G-Series 5.0L / 5.7L 1981, Engine Coolant Thermostat Housing Gasket by Gates®. If you want to keep your vehicle safe on the road for many years to come, go with this Gates product. Developed with the utmost attention to detail and...
      Great design and functionMade from sturdy materials
      $0.28
    • Stant® - Engine Coolant Thermostat Seal
      (0 reviews)
      # mpn4617538534
      Chevy G-Series 5.0L / 5.7L Replaces # 25153 1981, Engine Coolant Thermostat Seal by Stant®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with...
      Quality construction ensures exact fit and prolonged service life.Stainless steel bridge with channel-design for strength and rigidity.
      $0.64
    • CVR Performance® - Thermostat Housing
      (0 reviews)
      # 1393237548
      Thermostat Housing by CVR Performance®. This product is made of high-quality materials to serve you for years to come. Designed usig state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...
      Built to match your exact requirementsMade from premium materials to endure years of abuse
      $73.40 - $100.78
    • CSR Performance® - Thermostat Housing
      (0 reviews)
      # 1393300548
      Thermostat Housing by CSR Performance®. Finish: Clear. Designed with exceptional craftsmanship, this first-rate product ensures maximum results when it comes to keeping engine temperatures down. Made from sturdy materials, it provides...
      High quality at an affordable priceExpertly made from premium materials
      $54.53 - $151.19
    • Mr. Gasket® - Water Neck
      (0 reviews)
      # 1216570891
      Water Neck by Mr. Gasket®. Keeping your engine cool is pretty important, so Mr. Gasket has a full line of cooling system accessories. Whether it’s a simple, plain-Jane thermostat installed where the sun don’t shine or a full-on...
      Brilliant triple-chrome platingPrevent boilovers
      $15.48 - $42.08
    • CSR Performance® - Swivel Filler Neck
      (0 reviews)
      # 1393394552
      Swivel Filler Neck by CSR Performance®. Designed with exceptional craftsmanship, this first-rate product ensures maximum results when it comes to keeping engine temperatures down. Made from sturdy materials, it provides unparalleled...
      High quality at an affordable priceExpertly made from premium materials
      $151.19 - $175.49
    • Edelbrock® - Water Neck
      (0 reviews)
      # 1216570892
      Water Neck by Edelbrock®. If you are looking for a high-quality replacement part, this product is just the ticket. It was expertly designed by professional engineers using the state-of-the-art equipment and thoroughly tested to ensure...
      High quality at an affordable priceBuilt to match your exact requirements
      $15.95 - $33.95
    • Canton Racing® - Filler Neck
      (0 reviews)
      # 1216570899
      Filler Neck by Canton Racing®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly efficient replacement product and be sure the heart...
      High quality at an affordable priceBuilt to match your exact requirements
      $28.00 - $40.00
    • Canton Racing® - Straight Water Neck
      (0 reviews)
      # mpn359113238
      Straight Water Neck by Canton Racing®. Material: Billet Aluminum. Finish: Natural. Hose: -16AN. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component...
      Made from high-grade materialsProvides efficient performance
      $39.00
    • Proform® - Coolant Thermostat Housing
      (0 reviews)
      # 1216570890
      Coolant Thermostat Housing by Proform®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide excellent performance and...
      Carefully designed to improve the performance of your vehicleCrafted from first-rate materials
      $14.93 - $19.58
    • Proform® - Coolant Thermostat Housing
      (0 reviews)
      # mpn1422735756
      Coolant Thermostat Housing by Proform®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide excellent performance and...
      Carefully designed to improve the performance of your vehicleCrafted from first-rate materials
      $15.81
    • Proform® - Officially Licensed GM Coolant Thermostat Housing
      (0 reviews)
      # 1216570889
      Officially Licensed GM Coolant Thermostat Housing by Proform®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide...
      Officially Licensed GM ProductsCarefully designed to improve the performance of your vehicle
      $22.66 - $23.64
    • Racing Power Company® - Dual Port Water Neck
      (0 reviews)
      # mpn4498741326
      Dual Port Water Neck by Racing Power Company®. Material: Steel. Finish: Chrome.
      One-of-a-kind style will help customize your autoWill deliver unparalleled levels of durability
      $16.24
    • Racing Power Company® - Water Neck
      (0 reviews)
      # 1216570887
      Water Neck by Racing Power Company®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide excellent performance and...
      One-of-a-kind style will help customize your autoWill deliver unparalleled levels of durability
      $7.26 - $51.29
    • Trans-Dapt® - Water Neck
      (1 review)
      # 1393279548
      Water Neck by Trans-Dapt®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide excellent performance and years of...
      High quality at an affordable priceBuilt to match your exact requirements
      $18.90 - $74.98
    • Speed FX® - Water Neck
      (0 reviews)
      # 1216563907
      Water Neck by Speed FX®. Designed with meticulous attention to detail, this high-grade water neck by Speed FX ensures uncompromising reliability you are looking for. This product is made from premium stainless steel to reliably serve...
      Tested to outperform all comparable products on the marketMade from premium materials to endure years of abuse
      $9.60 - $31.98
    • Billet Specialties® - Thermostat Housing
      (1 review)
      # 1216570900
      Thermostat Housing by Billet Specialties®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide excellent performance...
      Designed with the latest innovationsMade to ensure a high level of quality
      $34.95 - $79.95
    • CFR Performance® - Water Neck
      (0 reviews)
      # 1393375549
      Water Neck by CFR Performance®.
      Expertly Crafted from the highest grade materialsBuilt to provide the ultimate in reliability and strength
      $9.98 - $21.60
    • Eddie Motorsports® - Billet Aluminum Thermostat Housing
      (0 reviews)
      # 1548769766
      Billet Aluminum Thermostat Housing by Eddie Motorsports®. Made in the USA from 6061-T6 billet aluminum, the housings feature a 360 degree swivel design that allows for correct hose alignment. The housings have an 80 degree outlet...
      Made to guarantee exceptional reliabilityStringent adherence to the highest quality standards
      $66.00 - $83.00
    • AFCO® - Aluminum Thermostat Housing
      (0 reviews)
      # 1473761241
      Aluminum Thermostat Housing by AFCO®. Material: Aluminum. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide...
      Perfect solution for racing or performance applicationsMade to provide unmatched efficiency and win
      $39.99
    • Racing Power Company® - Water Neck Block Off Plate
      (0 reviews)
      # mpn4498740309
      Water Neck Block Off Plate by Racing Power Company®.
      One-of-a-kind style will help customize your autoWill deliver unparalleled levels of durability
      $18.48
    • Weiand® - Emission System Water Outlet
      (0 reviews)
      # 1551161604
      Emission System Water Outlet by Weiand®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by Weiand will last a lifetime....
      Made with precision and quality in mindBuilt to last
      $115.95 - $133.95
    • ARP® - Water Pump Bolt Kit
      (0 reviews)
      # 1168037678
      Water Pump Bolt Kit by ARP®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide excellent performance and years of...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $13.31 - $40.77
    • Trans-Dapt® - Water Neck O-Ring
      (0 reviews)
      # 1393364549
      Water Neck O-Ring by Trans-Dapt®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide excellent performance and years...
      Built to match your exact requirementsHigh quality you can rely on
      $2.18 - $2.69
    • Speed FX® - Water Neck O-Ring
      (0 reviews)
      # mpn4499210509
      Water Neck O-Ring by Speed FX®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide excellent performance and years...
      Tested to outperform all comparable products on the marketMade from premium materials to endure years of abuse
      $18.01
    • Billet Specialties® - Thermostat Housing O-Ring Kit
      (0 reviews)
      # 1393239549
      Thermostat Housing O-Ring Kit by Billet Specialties®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide excellent...
      High quality at an affordable priceExpertly made from premium materials
      $3.95
    • AllStar Performance® - Thermostat Housing Gasket
      (0 reviews)
      # 1085014304
      Thermostat Housing Gasket by AllStar Performance®. The key to success in a car building project is access to high quality, reasonably priced parts that get the job done right. Each Allstar part is the result of thier dedication to...
      High quality at an affordable priceExpertly made from premium materials
      $1.69 - $35.99
    • Chevrolet Performance® - Engine Coolant Water Outlet
      (0 reviews)
      # mpn4576936426
      Engine Coolant Water Outlet by Chevrolet Performance®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly efficient replacement...
      Made to keep your vehicle's engine running coolDesigned to maintain proper cooling level and prevent overheating
      $4.41
    • CSR Performance® - Manifold Expansion Filler
      (0 reviews)
      # mpn358735336
      Chevy G-Series 5.0L / 5.7L 1981, Manifold Expansion Filler by CSR Performance®. Size: 6".
      High quality at an affordable priceExpertly made from premium materials
      $187.10
    • Merchant Automotive® - Engine Coolant Thermostat Housing
      (0 reviews)
      # mpn4491661507
      Chevy G-Series Van 1981, Engine Coolant Thermostat Housing by Merchant Automotive®. Build your ideal engine cooling system with superior Merchant Automotive cooling system parts that will help effectively carry away heat to prevent...
      Designed to increase cooling system performance and reliabilityHelp efficiently cool down your engine compartment
      $159.89
    • ACDelco® - Professional™ Engine Coolant Water Outlet
      (0 reviews)
      # mpn4491637848
      Chevy G-Series 4.1L 1981, Professional™ Engine Coolant Water Outlet without Gasket by ACDelco®. Material: Aluminum. Finish: Natural. Hole: With 2 Mounting Holes. Designed utilizing the latest technology, this product by ACDelco...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $24.98
    • MotoRad® - Engine Coolant Thermostat Housing
      (0 reviews)
      # 1551033595
      Chevy G-Series 1981, Engine Coolant Thermostat Housing by MotoRad®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your...
      Made to keep your vehicle's engine running coolDesigned to maintain proper cooling level and prevent overheating
      $6.64




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