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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Mr. Gasket®MLS Cylinder Head GasketsGMC B-Series 5.7L 1981, MLS Cylinder Head Gaskets by Mr. Gasket®. Designed with hardcore racing junkies and high-speed street enthusiasts, this Mr. Gasket performance product is right what you need to boost your driving experience....Designed to help you make the max out of your ridePerfect upgrade for race cars and muscle cars alike$97.24 - $108.95 - PRW®Double Roller 66 Link Timing ChainGMC B-Series with Chevy Big Block 1981, Double Roller 66 Link Timing Chain by PRW®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with...Made with precision and quality in mindDesigned to meet your specific needs$35.86
- Replace®350cid Remanufactured Complete EngineGMC B-Series 5.7L Block Cast # 207, 209 Right Head Cast # 624, 642, 114 Crank Cast # 442 Left Head Cast # 624, 642, 114 with Right Dipstick 1981, 350cid Remanufactured Complete Engine by Replace®. This premium product is the best way to...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$1,777.69
- Replace®366cid Remanufactured EngineGMC B-Series 6.0L Block Cast # 779, 724, 852, 293, 274, 282 Right Head Cast # R, L 052, 328, 864, 771 Crank Cast # 3896223 Left Head Cast # R, L 359, 219, 393 with A/C Bosses 1981, 366cid Remanufactured Engine by Replace®. This premium...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$2,343.12
- Replace®Cylinder HeadGMC B-Series 1981, Cylinder Head by Replace®. If your vehicle has a cylinder head problem, don’t waste time and money having your originals repaired. This premium product is the best way to go for those looking for the highest quality...Completely disassembled, thoroughly cleaned, and carefully inspectedChecked for cracks$276.75 - $361.40
- Sealed Power®PistonGMC B-Series 5.7L 1981, Piston by Sealed Power®. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...Helps improve cylinder sealing for less blow-byRetains standard ring gaps in top groove$24.14
- SBI®Exhaust ValveGMC B-Series 6.0L 1981, Exhaust Valve by SBI®. 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 provide a...Made with precision and quality in mindDesigned to meet your specific needs$14.38 - $61.24
- Continental® ContiTech™Serpentine BeltGMC B-Series 1981, Serpentine 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 reliability....Made with precision and quality in mindDesigned to meet your specific needs$8.94
- OER®Engine Oil PanGMC B-Series 6.0L 1981, Engine Oil Pan by OER®. 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$73.25
- Holley®Vintage Series Valve CoversGMC B-Series 5.7L 1981, Vintage Series Valve Covers by Holley®. Holley is pleased to offer their Vintage Series Small Block Chevy Valve Covers. These new products are the first of the Vintage Series family of die-cast aluminum dress up...Die-cast aluminum constructionEnsures high detail and reduces the opportunity for warping of the valve cover flange and oil leaks$164.95 - $209.95
- Clevite®P-Series Connecting Rod Bearings w/o Dowel Hole In Cap HalfGMC B-Series 6.0L / 7.0L 1981, P-Series Connecting Rod Bearings w/o Dowel Hole In Cap Half by Clevite®. These are not to be confused with the standard passenger car and light truck parts for the same retention applications which also...Expertly crafted from premium materialsDesigned to match rigorous quality standards$21.23
- Cloyes®Outer Heavy Duty Crankshaft SprocketGMC B-Series 6.0L / 7.0L 1981, Outer Heavy Duty Crankshaft Sprocket by Cloyes®. 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...Made with precision and quality in mindDesigned to meet your specific needs$8.08
- PRW®PQX™ Race SFI DamperGMC B-Series 6.0L / 7.0L 1981, PQX™ Race SFI Damper by PRW®. 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$209.58
- Dura-Bond®Spring RetainerGMC B-Series 5.7L 1981, Spring Retainer by Dura-Bond®. 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...Made with precision and quality in mindDesigned to meet your specific needs$16.24
- QualCast®Type W Push RodGMC B-Series 6.0L 1981, Type W Push Rod by QualCast®. 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...Made from high-strength materials for uncompromising durabilityDesigned to provide an excellent combination of price and quality$3.81
- SBI®Intake Valve GuideGMC B-Series 6.0L 1981, Intake Valve Guide by SBI®. 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 provide...Made with precision and quality in mindDesigned to meet your specific needs$3.11
- SBI®Intake/Exhaust 7/16 Rocker Arm NutGMC B-Series 6.0L 1981, Intake/Exhaust 7/16 Rocker Arm Nut by SBI®. 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....Made with precision and quality in mindDesigned to meet your specific needs$0.51
- SBI®Intake/Exhaust Rocker Arm BallGMC B-Series 6.0L 1981, Intake/Exhaust Rocker Arm Ball by SBI®. 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....Made with precision and quality in mindDesigned to meet your specific needs$0.44
- SBI®Intake/Exhaust Rocker Arm KitGMC B-Series 6.0L 1981, Intake/Exhaust Rocker Arm Kit by SBI®. 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...Made with precision and quality in mindDesigned to meet your specific needs$9.17
- SBI®Intake/Exhaust Valve SpringGMC B-Series 6.0L 1981, Intake/Exhaust Valve Spring by SBI®. 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...Made with precision and quality in mindDesigned to meet your specific needs$4.79
- SBI®Intake/Exhaust Valve Stem SealGMC B-Series 6.0L 1981, Intake/Exhaust Valve Stem Seal by SBI®. 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....Made with precision and quality in mindDesigned to meet your specific needs$0.65
- SBI®Push RodGMC B-Series 6.0L 1981, Intake/Exhaust Push Rod by SBI®. 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...Made with precision and quality in mindDesigned to meet your specific needs$2.44 - $2.51
- SBI®Valve Seat InsertGMC B-Series 1981, Valve Seat Insert by SBI®. 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 provide a...Made with precision and quality in mindDesigned to meet your specific needs$2.93 - $12.53
- Dura-Bond®Oil Dipstick PlugGMC B-Series 5.7L 1981, Oil Dipstick Plug by Dura-Bond®. 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...Rigorously tested to withstand years of abuseHigh-grade materials for long-lasting durability$11.68
- Fumoto®Plastic Elbow for 3/8" NippleGMC B-Series 1981, Plastic Elbow for 3/8" Nipple by Fumoto®. The 90 degree L-shaped plastic elbow fits 3/8" nipples on all FN, FS, and SX-series valves and is specifically designed to accept a hose for efficient and clean oil drainage....One Touch OperationAllows for clean and mess free oil changes$3.15
- Mr. Gasket®Oil DipstickGMC B-Series 5.7L 1981, Oil Dipstick by Mr. Gasket®. Add all the bling you can to your hot-rod or musclecar restoration with Mr. Gasket. Their brilliant chrome plating won't discolor, crack or peel.$18.95
- ACDelco®Professional™ Push Type Oil Filler CapGMC B-Series 5.7L / 6.0L / 7.0L 1981, Professional™ Push Type Oil Filler Cap by ACDelco®. An ACDelco Professional, premium aftermarket Engine Oil Filler Cap is a threaded or quarter-turn cap that seals the oil filler opening on your...Seal and help keep oil from leaking out of your engine oil filler openingProfessional, premium aftermarket replacement$2.39
- Stant®Push Plug Oil Filler CapGMC B-Series 5.7L / 6.0L / 7.0L 1981, Push Plug Oil Filler Cap by Stant®. This oil filler cap is designed to fit and function the same as the original equipment cap. It’s a direct replacement, made from premium materials and...Designed to fit and function as the original equipment capMade from premium materials$1.68
- iD Select®Oil Filler CapGMC B-Series 5.7L / 6.0L / 7.0L 1981, Oil Filler Cap by iD Select®. Swap out your worn-out or malfunctioning part with this top-notch product from iD Select. It’s built to OEM specifications to offer the same fit, form, and function...Direct OEM replacement for your malfunctioning partMade to deliver the ultimate in quality, reliability, and value$1.53
- Dura-Bond®Camshaft Tray BoltGMC B-Series 5.7L 1981, Camshaft Tray Bolt by Dura-Bond®. 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...Made with precision and quality in mindDesigned to meet your specific needs$7.64
