1981 GMC B-Series Engine
Select Your Submodel
- Engine Assemblies
- Engine Blocks
- Valves & Valvetrain Parts
- Pistons, Rings & Connecting Rods
- Oil Filters
- Serpentine Belts & Auxiliary Drive Belts
- Valve Covers
- Timing Gears, Chains & Covers
- Oil Pans, Drain Plugs & Dipsticks
- Cylinder Heads
- Oil Pumps
- Oil Coolers
- Camshafts
- Crankshafts
- Engine Bearings
- Harmonic Balancers
- Engine Rebuild Kits
- Balance Shafts
- Carburetors
- Motor Oils
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Hastings®Piston Ring SetGMC B-Series 6.0L 1981, Piston Ring Set by Hastings®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$54.94 - Continental® ContiTech™Mileage Maker™ Poly-V BeltGMC B-Series 1981, Mileage Maker™ Poly-V Belt by Continental® ContiTech™. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$7.94
- Mahle®Connecting Rod Bearing SetGMC B-Series 5.7L 1981, Connecting Rod Bearing Set by Mahle®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$29.59
- Victor Reinz®Crankshaft SealGMC B-Series 1981, Crankshaft Seal by Victor Reinz®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet...Made with precision and quality in mindDesigned to meet your specific needs$13.77 - $25.41
- Victor Reinz®Cylinder Head GasketGMC B-Series 1981, Cylinder Head Gasket by Victor Reinz®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will...Made with precision and quality in mindDesigned to meet your specific needs$23.69 - $95.80
- Victor Reinz®Valve Cover Gasket SetGMC B-Series 1981, Valve Cover Gasket Set by Victor Reinz®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will...Made with precision and quality in mindDesigned to meet your specific needs$16.19 - $39.59
- Victor Reinz®Cylinder Head Bolt SetGMC B-Series 1981, Cylinder Head Bolt Set by Victor Reinz®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will...Made with precision and quality in mindDesigned to meet your specific needs$20.49 - $37.69
- Idemitsu®Synthetic Blend Racing Rotary Premix Motor Oil, 1 QuartSynthetic Blend Racing Rotary Premix Motor Oil, 1 Quart by Idemitsu®. Developed for high-capacity engines, including turbos. Optimized for maximum performance, durability and wear protection, reducing emissions and fuel consumption.Developed for high-capacity engines, including turbosFeatures superior long-life technology$11.99
- Genuine®Motor OilMotor Oil, by Genuine®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and gas running out...$9.52 - $18.85
- Motorcraft®SAE 5W-20 Full Synthetic High Mileage Motor Oil, 1 QuartSAE 5W-20 Full Synthetic High Mileage Motor Oil, 1 Quart by Motorcraft®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in...$4.96
- CVR Performance®Spin-On Oil Filter MountGMC B-Series With Chevy Big Block 1981, Spin-On Oil Filter Mount by CVR Performance®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance...Eliminates the filter bypass port for 100% complete filtrationIncludes O-ring seal & hardware$38.92
- Crown®Engine Oil FilterGMC B-Series 5.7L / 6.0L 1981, Engine Oil Filter by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for...Developed to improve your driving experienceConstructed to ensure ultimate operation$23.85
- Hastings®Full-Flow Engine Oil FilterGMC B-Series 6.0L 1981, Full-Flow Engine Oil Filter by Hastings®. Hastings Premium Filters has been a manufacturer of mobile filtration products for over sixty years. Hastings manufactures and distributes automotive and heavy-duty...Expertly crafted from premium materialsDesigned to match rigorous quality standards$3.67
- Mahle®Engine Conversion Gasket SetGMC B-Series 6.0L / 7.0L 1981, Engine Conversion Gasket Set by Mahle®. Without Cylinder Head Gasket. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$23.10
- Mahle®Engine Timing SetGMC B-Series 6.0L / 7.0L 1981, Engine Timing Set by Mahle®. Designed utilizing the latest technology, this product by Mahle features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$47.74
- COMP Cams®Dual Energy™ Camshaft & Lifter KitGMC B-Series 5.7L 1981, Dual Energy™ Camshaft & Lifter Kit by COMP Cams®. This high-grade product was designed with craftsmanship and key attention to detail and manufactured using leading-edge innovations by experienced and...Similar to High Energy Cams™, but may work better at high rpm when coupled with headers because of added exhaust durationWork great with most stock components$317.95 - $320.95
- COMP Cams®Dual Energy™ Camshaft Complete KitGMC B-Series 5.7L 1981, Dual Energy™ Camshaft Complete Kit by COMP Cams®. This high-grade product was designed with craftsmanship and key attention to detail and manufactured using leading-edge innovations by experienced and...Similar to High Energy Cams™, but may work better at high rpm when coupled with headers because of added exhaust durationWork great with most stock components$539.95 - $548.95
- COMP Cams®Dual Energy™ Camshaft Small KitGMC B-Series 5.7L 1981, Dual Energy™ Camshaft Small Kit by COMP Cams®. This high-grade product was designed with craftsmanship and key attention to detail and manufactured using leading-edge innovations by experienced and...Similar to High Energy Cams™, but may work better at high rpm when coupled with headers because of added exhaust durationWork great with most stock components$317.95 - $372.95
- COMP Cams®Mechanical Flat Tappet High Rocker Ratio CamshaftGMC B-Series 5.7L 1981, Mechanical Flat Tappet High Rocker Ratio Camshaft by COMP Cams®. This high-grade product was designed with craftsmanship and key attention to detail and manufactured using leading-edge innovations by experienced...$324.95
- COMP Cams®Pure Energy™ Hydraulic Flat Tappet Camshaft & Lifter KitGMC B-Series 5.7L 1981, Pure Energy™ Hydraulic Flat Tappet Camshaft & Lifter Kit by COMP Cams®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality,...$321.95
- COMP Cams®Pure Energy™ Hydraulic Flat Tappet Camshaft Complete KitGMC B-Series 5.7L 1981, Pure Energy™ Hydraulic Flat Tappet Camshaft Complete Kit by COMP Cams®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality,...$540.95
- COMP Cams®Pure Energy™ Hydraulic Flat Tappet Camshaft Small KitGMC B-Series 5.7L 1981, Pure Energy™ Hydraulic Flat Tappet Camshaft Small Kit by COMP Cams®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality,...$293.95
- Enginetech®Cylinder Head Bolt SetGMC B-Series 7.0L 1981, Cylinder Head Bolt Set by Enginetech®. The Engine Builder's Source, can locate the right part for nearly any rebuild application. Offering a full line of internal engine parts for domestic, import and high...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$18.42
- Enginetech®Engine PistonGMC B-Series 6.0L 1981, Engine Piston by Enginetech®. Superior size and weight grading within each set. Most Enginetech pistons are decked 0.010" to 0.020" to compensate for oversized bores and head/deck milling. Enginetech pistons are...Rigorously tested to withstand years of abuseDesigned with innovative manufacturing techniques$229.55
- Enginetech®Stage S Hydraulic CamshaftGMC B-Series 6.0L 1981, Stage S Hydraulic Camshaft by Enginetech®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability....Rigorously tested to withstand years of abuseDesigned with innovative manufacturing techniques$79.76 - $134.91
- Lunati®Horizontal Bar Pop-Up Solid Roller Lifter SetGMC B-Series 5.7L 1981, Horizontal Bar Pop-Up Solid Roller Lifter Set by Lunati®. Lunati pop-up design roller lifters are ideal for applications that need a quick cam change, whether it be during dyno testing or racing. The unique...High quality at an affordable priceExpertly made from premium materials$74.41
- Lunati®Vertical Bar Pressurized Oiling Lifter SetGMC B-Series 5.7L 1981, Vertical Bar Pressurized Oiling Lifter Set by Lunati®. Developed for serious racing applications, the pressurized oiling system of these lifters provides constant lubrication through the axle and to the needles....High quality at an affordable priceExpertly made from premium materials$1,209.00
- Melling®Oil Pressure Relief Valve SpringGMC B-Series 7.0L 1981, Oil Pressure Relief Valve Spring by Melling®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability....Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$7.85 - $13.64
- Milodon®Idler Axle with BoltsGMC B-Series 6.0L / 7.0L with Chevy Big Block Engine 1981, Idler Axle with Bolts by Milodon®. 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...Painstakingly designed to meet your racing needsState-of-the-art manufacturing technology$69.95
- Milodon®Timing Cam CoverGMC B-Series 6.0L / 7.0L with Chevy Big Block Engine 1981, Timing Cam Cover by Milodon®. 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...Painstakingly designed to meet your racing needsState-of-the-art manufacturing technology$259.95
