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Category Archives: Cummins 6CT and ISC 8.3 Information

How Much Does An 8.3 Cummins Swap Cost?

By Featured Writer Mike McGlothlin When a dump truck, bus, tractor, or motor home is underpowered or in need of an engine rebuild, one popular medium-duty diesel power plant gets a lot of looks. That engine is the 6CT Cummins, also known as the 6CTA (for aftercooled) or 6CTAA (for air-to-air intercooled). The widely-used, mechanically-injected…
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What Turbo Is On The 8.3L Cummins?

By Featured Writer Mike McGlothlin In the medium-duty segment, the all-iron, wet-sleeve 8.3L Cummins is renowned for its workhorse nature, where million-mile durability can be had in any bus, motor home, fire engine, or garbage truck it resides in. Specifically, the mechanical injection 6CT—produced for on-highway applications from 1985 to 1998—enjoys a sound reputation for…
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Compression Testing A Cummins Engine

By Featured Writer: Mike McGlothlin On any internal combustion engine, compression is what makes the world go ‘round. For diesel engines, where compression is often at least double what you see in a typical gasoline engine, it means everything. Not surprisingly, being down on compression means you’re down on power—and that can’t happen when you’ve…
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