Gasoline/Gas and Diesel Engines
When we think of shrinking natural energy sources and economical viability, gasoline and gas engines may be with us for years to come, but the market is also changing. According to Wikipedia (an online informational source), most internal combustion engines are most commonly used for mobile propulsion systems. These engines typically provide high power to weight ratios together with excellent fuel energy-density. These engines have appeared in almost all cars, motorbikes, many boats, and in a wide variety of aircraft and locomotives. All internal combustion engines depend on the exothermic chemical process of combustion: the reaction of a fuel, typically with air, although other oxidisers such as nitrous oxide may be employed. Also see stoichiometry.
The most common fuels in use today are made up of hydrocarbons and are derived from petroleum. These include the fuels known as diesel, gasoline and liquified petroleum gas. Most internal combustion engines designed for gasoline can run on natural gas or liquified petroleum gases without modifications, except for the fuel delivery components. Liquid and gaseous biofuels of adequate formulation can also be used. Some have theorized that in the future hydrogen might replace such fuels. For now, and the purpose of our discussion here, we focus on gasoline and/or natural gas engines.
Fuel is mostly seen as something that will burn and needed for cars, trucks and engines to burn. There are lots of types of fuel though. For our focus, liquid and gas fuels are in questions. They are normally non-solid fuels, including petroleum and gas (both fuel types have myriad varieties including petrol (gasoline) and natural gas). The former is widely used in the internal combustion engine, while both are used in power generation. Gasoline engines and other automotive parts are freely available – compare our product listings and sourcing options to find the gasoline/gas engine that is right for your need and requirements.
Diesel engines have been around for a long time and you would think the American automaker could design and build a good one, and they have, with two exceptions, the General Motors 6.2 and 6.5 iterations. When they came out with this one, there was not near enough testing done for aspects like longevity. It has been found that these engines are not capable of withstanding the high compression and torque a diesel produces.
The 6.2 & 6.5’s were designed so poorly; we will not attempt to remanufacture them. In fact rumor has it General Motors is no longer producing them, in other words, if you want to buy one from General Motors, they would outsource it (buy it from another entity and then resell it to you).
The 6.2 & 6.5 block and head castings originally supplied, had major structural defects. The block casting main line, was incapable of withstanding the thrust load produced by the high compression. The main line cracks and/or brakes causing the crankshaft to break loose from the block, ouch! The cylinder heads crack in the combustion chambers and the head bolt bosses would crack out. The connecting rods were at risk of breaking, and the pre-cup chambers delivered poor fuel economy. In other words, there really is not a lot left for the engine rebuilder to work with. Therefore, we do not. WE DO NOT COMPROMISE!
That is the bad news, now for the good. We do sell the 6.2 & 6.5 diesel engines NEW. Yes new, still in the crate! The 6.2 & 6.5’s we supply, have cylinder blocks and cylinder heads, cast with Molybdenum. This makes the casting material much stronger. The main line has wider main caps, with wider reinforced main webbing in the block. The cylinder heads have the stronger Molybdenum in their casting and hardened chrome in the combustion chamber, with reinforced head bolt bosses. A newly designed pre-cup chamber for a better fuel burn, forged steel connecting rods and a forged carbonized steel camshaft complete the offering. All the 6.2 & 6.5’s are run, tested and come with oil pump, oil pan (might have to change with yours) and valve covers installed.
We have been selling these redesigned engines for two years and as of today (cross my fingers); we have yet to have one complaint, let alone a failure.
So be careful when buying a replacement 6.2 or 6.5, if you buy an engine rebuilt from an original G/M casting, you are most likely buying the same problems you are trying to get rid of.
By the way, we also have a marine version; it comes with flywheel, injectors, glow plugs, pumps, intake manifolds, valve covers, oil pan, timing covers and has been hot run. (Exhaust manifolds are not included)
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