1978 GMC G-Series Engine Parts
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- Engine Assemblies
- Motor Mounts
- 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
- Engine Pulleys
- Engine Sensors, Relays, Switches & Connectors
- Oil Pumps
- Oil Coolers
- Camshafts
- Crankshafts
- Engine Management Systems
- Engine Bearings
- Harmonic Balancers
- Engine Rebuild Kits
- Balance Shafts
- Engine Swap Kits
- Throttle Bodies
- Carburetors
- Motor Oils
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Fel-Pro®Blue Stripe™ Cork-Rubber Valve Cover GasketGMC G-Series 4.1L / 4.8L 1978, Blue Stripe™ Cork-Rubber Valve Cover Gasket by Fel-Pro®. This legendary cork-rubber solution combines the qualities of cork and rubber gaskets. It maintains its shape and flexibility, yet is highly...Designed for imperfect sealing surfaces - Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfacesEngineered to perform - Proprietary cork-rubber formulation$9.73 - Fel-Pro®Blue Stripe™ Valve Cover Gasket SetGMC G-Series 1978, Blue Stripe™ Valve Cover Gasket Set by Fel-Pro®. This legendary cork-rubber solution combines the qualities of cork and rubber gaskets. It maintains its shape and flexibility, yet is highly compressible. It seals...Designed for imperfect sealing surfaces - Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfacesEngineered to perform - Proprietary cork-rubber formulation$9.53 - $15.44
- Fel-Pro®PermaDryPlus™ Valve Cover Gasket SetGMC G-Series 5.0L / 5.7L / 6.6L 1978, PermaDryPlus™ Valve Cover Gasket Set by Fel-Pro®. These problem-solving gaskets feature the latest technologies designed specifically for the aftermarket repair environment. They are the right...One-piece, molded silicone rubber construction provides superior blowout resistanceTime-saving rigid carrier system provides instant fit without adhesives, hence the name “PermaDryPlus”$40.00
- Gates®Oil Filler CapGMC G-Series 1978, Oil Filler Cap by Gates®. Designed with customers in mind, this superior tool will give you the functionality and reliability you need to get things done right the first time. Gates made it using innovative...The finest quality at a great priceGates carries everything needed to complete the job$2.42 - $3.52
- ACDelco®GM Original Equipment™ Engine Oil FilterGMC G-Series 1978, GM Original Equipment™ Engine Oil Filter by ACDelco®. 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$6.53 - $15.95Save: up to 17%$5.64 - $13.22
- Luber-finer®Engine Oil FilterGMC G-Series 1978, Engine Oil Filter by Luber-finer®. Oil is the lifeblood of the heavy duty engine. Luber-finer high-efficiency oil filters provide protection from oil contaminants to help ensure optimal performance. Efficient...Extended Line of cartridge and spin-on filtersWide Selection Of Filters Providing Broad Coverage$3.53 - $3.73
- Sealed Power®Oil PumpGMC G-Series 1978, Oil Pump 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...Manufactured to fit a specific applicationEnsures that oil is evenly distributed in the engine system$37.70 - $95.91
- Sealed Power®Press Fit Type Oil Pump Pick-UpGMC G-Series 5.0L / 5.7L / 6.6L 1978, Press Fit Type Oil Pump Pick-Up by Sealed Power®. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for...Direct replacementManufactured to strict engineering quality standards$8.60
- Mahle®OEM High Volume Oil PumpGMC G-Series 5.0L / 5.7L / 6.6L 1978, OEM High Volume Oil Pump 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$60.51
- Standard®Tru-Tech™ 1 Blade Terminal Oil Pressure Light SwitchGMC G-Series 1978, Tru-Tech™ 1 Blade Terminal Oil Pressure Light Switch by Standard®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance...Compliant with the strictest standards for qualityExpertly crafted using the up-to-date technology$7.54
- Standard®Tru-Tech™ Male Oil Pressure Gauge SwitchGMC G-Series 1978, Tru-Tech™ Male Oil Pressure Gauge Switch by Standard®. 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...Compliant with the strictest standards for qualityExpertly crafted using the up-to-date technology$25.78
- Original Engine Management®Engine Oil Pressure Sender with LightGMC G-Series 1978, Engine Oil Pressure Sender with Light by Original Engine Management®. Designed utilizing the latest technology, this product by Original Engine Management features premium quality and will perform better than...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$7.44
- Original Engine Management®Oil Pressure SwitchGMC G-Series 1978, Oil Pressure Switch by Original Engine Management®. 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$30.48
- Continental® ContiTech™V-Groove Accessory Drive BeltGMC G-Series 1978, V-Groove Accessory Drive Belt by Continental® ContiTech™. This belt is designed with teeth molded directly into its surface to avoid slipping for reliable and efficient performance. Manufactured using the latest...OE quality product for safe, reliable, and efficient performanceManufactured using the latest material technology$16.12 - $16.35
- Dayco®Drive Rite™ V-BeltGMC G-Series 1978, Drive Rite™ V-Belt by Dayco®. Specially formulated high temperature Polymer along with the highest level of engineered reinforcement proves to perform better in belt operating temperature and efficiency than leading...Faster and more consistent throttle response at high speedsQuicker throttle response at mid-speed acceleration$2.19 - $8.44
- iD Select®Engine Timing ChainGMC G-Series 5.0L 1978, Engine Timing Chain 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 as your...Direct OEM replacement for your malfunctioning partMade to deliver the ultimate in quality, reliability, and value$19.29 - $30.79Save: 10%$17.36 - $27.71
- Cloyes®Front Aluminum Camshaft GearGMC G-Series 1978, Front Aluminum Camshaft Gear 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 reliability. Designed to...Made with precision and quality in mindDesigned to meet your specific needs$25.47 - $27.87
- Cloyes®Front Camshaft SprocketGMC G-Series 1978, Front Camshaft 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 reliability. Designed to...Made with precision and quality in mindDesigned to meet your specific needs$7.53 - $8.79
- Cloyes®Timing ChainGMC G-Series 1978, Timing Chain 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 reliability. Designed to provide a...Perfect for upgrading your fuel injection systemMade with the use of the highest quality materials$12.39 - $121.66
- Cloyes®Timing Gear SetGMC G-Series 1978, Timing Gear Set by Cloyes®. Keep your engine’s valvetrain in perfect time with Cloyes, the world leader in timing drive systems. No matter whether you need a timing gear or complete timing gear set, Cloyes has the...Maintains critical valve timingPrevents performance problems and possible engine damage that can result from incorrect timing$42.02 - $50.92
- Pioneer Automotive®Rear Steel Timing CoverGMC G15 / G25 1978, Rear Steel Timing Cover by Pioneer Automotive®. Designed utilizing the latest technology, this product by Pioneer Automotive features premium quality and will perform better than advertised. Perfect for your vehicle...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$21.27
- Derale Performance®Series 10000™ Stack Plate CoolerGMC G-Series 1978, Series 10000™ Stack Plate Cooler by Derale Performance®. This rubber O-ring fits 2-3/4 Diameter sandwich adapter Part No. 15702.High quality aluminum castingNPT ports out design$107.37 - $135.37
- Derale Performance®Series 8000™ Plate & Fin CoolerGMC G-Series Automatic Transmission 1978, Series 8000™ Plate & Fin Cooler by Derale Performance®. A step up from Tube and Fin type coolers, this Plate and Fin cooler features strong furnace-brazed construction, 7/8" wide plates, 3/4"...Embossed turbulators inserted in each tube agitate fluid for maximum heat transferExtruded plastic cooling fin guards$64.99
- Sealed Power®A-Series Aluminum Connecting Rod Bearing SetGMC G-Series 1978, A-Series Aluminum Connecting Rod Bearing Set by Sealed Power®. 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...Perfect for upgrading your fuel injection systemMade with the use of the highest quality materials$3.23 - $31.55
- Sealed Power®A-Series Crankshaft Main Bearing SetGMC G-Series 1978, A-Series Crankshaft Main Bearing Set by Sealed Power®. 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...A-Series bi-metal aluminum alloyGreater seizure resistance than tri-metal material$39.05 - $82.85
- Sealed Power®Crankshaft Main Bearing SetGMC G-Series 1978, Crankshaft Main Bearing Set 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...Greater seizure resistance than tri-metal materialReduces dramatically or eliminates bearing wear$39.35 - $84.23
- DNJ Engine Components®Camshaft Bearing SetGMC G-Series 5.0L / 5.7L 1978, Camshaft Bearing Set by DNJ Engine Components®. Protect your engine part from contaminants and prolong it's service life with this premium DNJ seal. Rigorously manufactured from top-grade materials and...Designed to provide reliable sealing performanceProtects the engine part from contaminants and extends it's life$17.48
- Clevite®A-Series Connecting Rod Bearing SetGMC G-Series 1978, A-Series Connecting Rod Bearing Set by Clevite®. 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$3.27 - $25.13
- Clevite®A-Series Crankshaft Main Bearing SetGMC G-Series 5.0L / 5.7L 1978, A-Series Crankshaft Main Bearing Set by Clevite®. 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...Expertly crafted from premium materialsDesigned to match rigorous quality standards$17.53
- Clevite®A-Series OE Replacement Connecting Rod BearingGMC G-Series 4.1L 1978, A-Series OE Replacement Connecting Rod Bearing by Clevite®. Enjoy superior performance by getting this premium-grade Clevite product that is throughly engineered to help take the performance of your fuel system...Made with the use of the highest quality materialsModern technology for uncompromising reliability$3.35
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1978 GMC G-Series Engine Reviews
3 reviews
Works Great. Had to Drive It for a Couple of Hundred Miles but Once I Checked Had No Leak at All
BlueDevil® - Rear Main Seal, 8 ozPosted by Customer / March 14, 20212005 Ford F-350
1978 GMC G-Series Models
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