1974 GMC G-Series Engine Blocks
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Dart®LS Next GEN III Cast Iron BlockGMC G35/G3500 Van 5.7L 1974, LS Next GEN III Cast Iron Block by Dart®. 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....Dart’s LS Next block is cast in the USA with premium cast iron alloyConventional style 4-bolt steel main caps with 7/16" bolts are used$4,654.75 - Dart®Special High Performance Engine BlockGMC G35/G3500 Van 5.7L 1974, Special High Performance Engine Block by Dart®. The SHP Ford Block is tailored to the most popular performance and racing applications. The valley is machined to accept factory roller lifter guides and...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$2,944.48
- Melling®Cylinder LinerGMC G-Series 1974, Cylinder Liner by Melling®. Melling replacement cylinder liners provide an efficient and economical way to replace the cylinder sleeves needed for a quality engine rebuild. Melling cylinder liners are manufactured...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$33.74 - $113.66
- Dorman®Autograde™ Expansion PlugGMC G-Series 1974, Autograde™ Expansion Plug by Dorman®. Dorman offers a comprehensive line of Engine Expansion Plug Kits to cover a range of applications. The kits include all parts necessary for a complete repair.Direct fit kits available for ease of replacementExpansion Plugs also available individually$1.45 - $13.20
- Dorman®Autograde™ Expansion Plug KitGMC G-Series 1974, Autograde™ Expansion Plug Kit by Dorman®. Dorman offers a comprehensive line of Engine Expansion Plug Kits to cover a range of applications. The kits include all parts necessary for a complete repair.Direct fit kits available for ease of replacementExpansion Plugs also available individually$9.74 - $18.95
- Dorman®Autograde™ Expansion PlugsGMC G-Series 1974, Autograde™ Expansion Plugs by Dorman®. Dorman offers a comprehensive line of Engine Expansion Plug Kits to cover a range of applications. The kits include all parts necessary for a complete repair.Direct fit kits available for ease of replacementExpansion Plugs also available individually$11.37 - $26.41
- Melling®Expansion Plug KitGMC G-Series 1974, Expansion Plug Kit by Melling®. Melling expansion plug kits provide an efficient way to supply the plug requirements to complete your engine rebuild. Melling offers convenient bagged coverage for most domestic and...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$7.14 - $27.03
- DNJ Engine Components®Brass Expansion Plug KitGMC G15/G1500 Van / G25/G2500 Van 1974, Brass Expansion Plug Kit by DNJ Engine Components®. Designed utilizing the latest technology, this product by DNJ Engine Components features premium quality and will perform better than...DNJ is your sourse for all your Engine part needs. DNJ Engine Components are backed a 12-month or 12,000-mile warranty whichever comes firstDNJ Engine Components are manufactured to meet or exceed OEM specifications and engineered by associates with ISO9001, ISO9002, OS9000 certificates$25.31
- Enginetech®Expansion Plug KitGMC G-Series 1974, Expansion Plug Kit 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 performance...Rigorously tested to withstand years of abuseDesigned with innovative manufacturing techniques$3.60 - $15.16
- Pioneer Automotive®Expansion Plug KitGMC G-Series 1974, Expansion Plug Kit 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 and...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$6.74 - $30.94
- Moroso®Rear Main Seal AdapterGMC G-Series 5.7L 1974, Rear Main Seal Adapter by Moroso®. 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$225.99 - $252.99
- SCE Gaskets®Accu Seal E Dyno Pak Rear Main Seal SetGMC G-Series 5.7L With Chevy Small Block Engine 1974, Accu Seal E Dyno Pak Rear Main Seal Set by SCE Gaskets®. Another SCE first: Dyno PaksTM are tailor-made for engine builders and other volume gasket users. Each Dyno Pak contains 10...Perfect solution for racing and high-performance engine applicationsManufactured using advanced engineering and on-track testing$98.76
- SCE Gaskets®Rear Main SealGMC G-Series 5.7L With Short Chevy Small Block Engine 1974, Rear Main Seal by SCE Gaskets®. 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...Perfect solution for racing and high-performance engine applicationsManufactured using advanced engineering and on-track testing$16.20
- ATP®Expansion Plug KitGMC G-Series 1974, Expansion Plug Kit by ATP®. ATP Graywerks Exhaust Manifolds are a high quality OE replacement alternative. Each manifold is developed off of the original parts specifications, to ensure it will install and perform...Manufactured to OE design ensuring manifold will line up and flow like the original unitHigh grade metallurgy resists fatigue cracking and breakage$11.14
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