When modifying any diesel vehicle, there's always the question of "what's next?" In Colton Ahlberg's case, he had already modified his truck with larger injectors, a bigger turbo, modified injection ...

Not everyone has access to a dyno or even a racetrack for A/B comparative testing. Is it possible to determine whether a given cam profile should be installed advanced or retarded when you first plug ...

When we left this fat ol' mutt last month, its motor was fixed with the foundation for a spicier camshaft. A Crane rocker-arm kit (1.8:1, dual valvesprings, stouter pushrods, etc.) and the beginnings ...

Time to take this build to the next level! 🔧 In this video, I install a performance camshaft into my C5 Corvette LS1, a major upgrade that transforms how this engine breathes and performs. 💥 This ...

This diagram shows the major cam events through one full cylinder cycle (two crank revolutions or 720 degrees), beginning at TDC firing. The exhaust lobe and valvetrain is closer to the front, and ...

COMP Cams has released a new upgrade camshaft kit designed specifically for iron block General Motors 4.8L LS V8 engines running an aftermarket turbocharged setup. COMP Cams says its new Stage 2 LST ...