Category Archives: Mopar

Jeep Straight Six Stroker Build: Big Power on a Budget

The Jeep straight six is one of the greatest engines of all time. But that doesn’t mean it can’t be improved. Newcomer Racing shows us how to put together a big power, naturally aspirated stroker 4.0 Jeep engine without spending big coin. The basic recipe is to use the block and connecting rods from a…
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Secrets to Dialing in a Mopar Valvetrain

Like most Mopar engines, this 340 LA-series small block utilizes a shaft-mounted rocker system that provides superior stability but requires a few extra precautions during installation to make sure the geometry is correct.   There is no doubt that the stud-mounted rocker systems that are commonplace in small block Fords and Chevys are simpler and…
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Reviving the Elephant

Part Three in the series is now up! We’re building a classic 426 Hemi, an engine that was so revered it was nicknamed “The Elephant.” The results: 516 lb/ft of torque and 550 horsepower–all on pump gas. Updated with the final video including dyno testing!
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