GM has filed a patent application a variable displacement valvetrain system with rocker shaft porting and insert sleeves for ...

COLUMBUS, Ind. — Cummins Inc. (NYSE: CMI) and Liberty Energy Inc. (NYSE: LBRT) (“Liberty”) today announced that the industry’s first natural gas variable speed, large displacement engine to power ...

LONDON--(BUSINESS WIRE)--Technavio’s latest report on the global automotive variable displacement engine market provides an analysis of the most important trends expected to impact the market outlook ...

COLUMBUS, Ind. & DENVER, Colo.--(BUSINESS WIRE)--Cummins Inc. (NYSE: CMI) and Liberty Energy Inc. (NYSE: LBRT) (“Liberty”) today announced that the industry’s first natural gas variable speed, large ...

“Bigger is better.” “There is no replacement for displacement.” We’ve heard these sayings many times about how more cubic ...