Owners of 5.7 and 6.4 Hemi V8s are not imagining things when they hear that sharp tick at idle or face a four-figure repair ...

Despite the systems approach to engine components, classic hot rodding is still a mix 'n' match affair. While choosing the right pieces is important, ensuring they work together properly is even more ...

A camshaft can be a huge performance component for an engine-many people know this. Cam lobe design is often regarded as a black art. Many who have mastered it prefer it that way to keep people from ...

Ever hear the saying "ignorance is bliss"? When it comes to the valvetrain on my Real Street pushrod engine, it might be true. For about a year, we've been looking for an opportunity to look at our ...

BLOOMFIELD, Connecticut—Jacobs Vehicle Systems has begun demonstrating two new technologies designed to help fleets and OEMs meet federal 2027 emissions targets. Just outside of Hartford, Connecticut, ...

One way to improve diesel engine performance and to reduce emissions is improving power density and combustion cycle efficiency. It can be done by increasing combustion pressure and engine speed ...

Eaton’s valvetrain portfolio for diesel off-highway vehicles now features cylinder-deactivation (CDA) technology that allows for variable valve actuation with hydraulic lash adjustment (HLA) ...

ABSTRACT Current heavy duty diesel valvetrains are not able to utilize hydraulic lash adjusters (HLA) in conjunction with an engine brake. During a braking event the engine brake introduces ...