Big bore or long-stroke — which engine design makes more power and which is more efficient?

Jason Fenske of Engineering Explained runs the numbers to find out, and explains the science behind it.

While not the final word in the Carb vs. EFI debate, this test of a unique EFI system by Keith Dorton has interesting results.

The dyno tests of the two identical engines prove that airflow is king.

The pattern left by your rocker tip on the tip of your valve can tell you how your valvetrain is performing, and warn of impending issues.

Zeke Urrutia of Ferrea Racing Components explains valve-tip patterns.

The SEMA Ignited 2019 Show invites car fans in Las Vegas area to see the best cars and trucks from the show.

Ticket prices announced are $20 for basic and $75 for a VIP pass.

The B58 3.0-liter turbocharged inline-six-cylinder engine powering the 2020 Toyota Supra has some huge shoes to fill.

Besides the comparisons to the 2JZ, it will have to impress a new generation of enthusiasts.

In our Coyote Vs. LS 2 Shootout, the LME LSX engine was able to make some huge numbers to win the competition.

We take a look the Late Model Engines build and the components used.

General Motors might be hopping on the variable compression wagon if this patent is any clue.

More than just variable compression, this engine design also features independent compression and expansion ratios.

It's not often you get to see the assembly of a factory-supercharged 840-horsepower Gen-III powerhouse.

This time-lapse video shows the entire assembly process from bare block to running engine with some style.

The correct rocker arm geometry is crucial to making your rocker arms live in high-power, high-cylinder-pressure applications.

Crower makes the process easy with their shaft rocker systems.

The two supercharged engines were put on Westech's engine dyno to see which one reigns supreme.

Will the stellar efficiencies of the Coyote be enough to overcome the brute size of the LS?