'Everybody wants to talk about bottom-of-the-page camshafts with calendar-length duration figures and valve lifts approaching 31/44 inch. With all this thinly veiled aggression going on in the ...

An engine's valvesprings play a critical role in its performance, yet those incorrectly chosen for a given application can cause hobbyists to unknowingly point blame in another direction if an engine ...

Your doctor will tell you that stress kills. The same is true for high-performance engines and it’s a safe bet that if your engine is running aggressive valvesprings and stud-mounted rockers, there’s ...