1978 Pontiac Grand Prix Engine Blocks
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Dart®Special High Performance Engine BlockPontiac Grand Prix 5.0L 1978, 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 - Fel-Pro®Intake Manifold Valley Pan Gasket SetPontiac Grand Prix 3.8L Block Cast # 1803440-01, 1807996 Right Head Cast # 215, 885C1, 296, 199, 855 Crank Cast # 420C Left Head Cast # 215, 885C1, 296, 199, 855 1978, Intake Manifold Valley Pan Gasket Set by Fel-Pro®. Fel-Pro gaskets...Meets or exceeds all original equipment specificationsApplication-specific design for a perfect fit$35.99
- Darton Sleeves®Donovan™ Replacement Cylinder SleevePontiac Grand Prix 5.0L With Chevy Small Block Engines 1978, Donovan™ Replacement Cylinder Sleeve by Darton Sleeves®. The ASTM specifications for performance ductile iron sleeves indicates a minimum tensile strength of 100,000 pounds....Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$132.66
- Dorman®Autograde™ Expansion PlugPontiac Grand Prix 1978, Autograde™ Expansion Plug by Dorman®. This engine expansion plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable...Direct replacement - this engine expansion plug matches the fit and function of the factory part on specified years, makes and modelsIdeal solution - this plug is a reliable replacement for an original part that is missing or has failed due to fatigue$1.01 - $13.13
- Dorman®Autograde™ Expansion Plug KitPontiac Grand Prix 1978, Autograde™ Expansion Plug Kit by Dorman®. This engine expansion plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for...Direct replacement - this engine expansion plug matches the fit and function of the factory part on specified years, makes and modelsIdeal solution - this plug is a reliable replacement for an original part that is missing or has failed due to fatigue$9.74 - $23.94
- Dorman®Autograde™ Expansion PlugsPontiac Grand Prix 1978, Autograde™ Expansion Plugs by Dorman®. This engine expansion plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable...Direct replacement - this engine expansion plug matches the fit and function of the factory part on specified years, makes and modelsIdeal solution - this plug is a reliable replacement for an original part that is missing or has failed due to fatigue$6.50 - $26.82
- Enginetech®Expansion Plug KitPontiac Grand Prix 1978, 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...Rigorously tested to withstand years of abuseDesigned with innovative manufacturing techniques$4.19 - $20.26
- Pioneer Automotive®Expansion Plug KitPontiac Grand Prix 1978, 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$6.56 - $26.31
- SCE Gaskets®Rear Main SealPontiac Grand Prix 4.9L / 5.0L With Short Chevy Small Block Engine 1978, 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...Perfect solution for racing and high-performance engine applicationsManufactured using advanced engineering and on-track testing$16.20
- Dorman®Autograde™ Pipe PlugsPontiac Grand Prix 3.8L 1978, Autograde™ Pipe Plugs by Dorman®. This pipe plug matches the original equipment plug for diameter, thread pitch and head type to ensure a reliable repair. Made of corrosion-resistant material, it has been...Ideal replacement - this pipe plug matches the diameter, thread pitch and head type of the original equipment partDurable construction - this plug is made of quality materials for dependable service$3.51 - $4.98
- Dorman®HELP™ 1" Rubber Expansion PlugPontiac Grand Prix 3.8L 1978, HELP™ 1" Rubber Expansion Plug by Dorman®. This engine oil galley plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for...Direct replacement - this engine oil galley plug matches the fit and function of the factory part on specified years, makes and modelsIdeal solution - this plug is a reliable replacement for an original part that is missing or has failed due to fatigue$4.79
- Dorman®Outside Thread Type Pipe PlugPontiac Grand Prix 3.8L 1978, Outside Thread Type Pipe Plug by Dorman®. Dorman Pipe Plugs are manufactured with high corrosion resistance for long-lasting performance. They're conveniently available in packs of varying quantities.Direct replacement for a proper fit every timeThread lock applied for increased locking action and leak prevention$3.33
- DNJ Engine Components®Brass Expansion Plug KitPontiac Grand Prix 1978, 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 advertised. Perfect for...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
- SCE Gaskets®Accu Seal E Dyno Pak Rear Main Seal SetPontiac Grand Prix 4.9L / 5.0L With Chevy Small Block Engine 1978, 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...Perfect solution for racing and high-performance engine applicationsManufactured using advanced engineering and on-track testing$98.76
- SCE Gaskets®Accu Seal Pro Rear Main SealsPontiac Grand Prix 4.9L With Pontiac Short Block Engine 1978, Accu Seal Pro Rear Main Seals 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...Perfect solution for racing and high-performance engine applicationsManufactured using advanced engineering and on-track testing$109.49
- Moroso®Rear Main Seal AdapterPontiac Grand Prix 5.0L 1978, 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 deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$225.99 - $252.99
- ATP®Expansion Plug KitPontiac Grand Prix 1978, 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...Manufactured to OE design ensuring manifold will line up and flow like the original unitHigh grade metallurgy resists fatigue cracking and breakage$9.67
- Dart®LS Next GEN III Cast Iron BlockPontiac Grand Prix 5.0L 1978, 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 Pro Engine BlockPontiac Grand Prix 5.0L 1978, Special High Performance Pro Engine 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...Brand new precision machined, light weight cast iron blockBillet steel main caps$3,806.23
- Enginetech®Cylinder SleevePontiac Grand Prix 3.8L 1978, Cylinder Sleeve 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...Rigorously tested to withstand years of abuseDesigned with innovative manufacturing techniques$11.07
- Mahle®Expansion PlugPontiac Grand Prix 5.0L 1978, Expansion Plug 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. Manufactured...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$3.78 - $51.56
- QualCast®Steel Expansion Plug KitPontiac Grand Prix 1978, Steel Expansion Plug Kit 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....Made from high-strength materials for uncompromising durabilityDesigned to provide an excellent combination of price and quality$6.12
- Proform®Expansion PlugPontiac Grand Prix 1978, Expansion Plug by Proform®. 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 needs and...Carefully designed to improve the performance of your vehicleCrafted from first-rate materials$24.38 - $33.66
- Proform®Expansion Plug InsertPontiac Grand Prix 5.0L With Chevy Small Block Engines 1978, Expansion Plug Insert by Proform®. Official GM Licensed Product. With Raised Bowtie Emblem. Material: Billet Aluminum. Designed to Hide Unsightly Freeze Plugs On Engines. Two...Officially Licensed GM ProductsCarefully designed to improve the performance of your vehicle$32.94
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