For mild street engines, stock valve springs are more than adequate. But if you've screwed in a big bumpstick for strip-banging or banzai runnin', then pay attention. Our plan was simple: Install a ...

Back in September 2020, GM quietly admitted that small-block V8s suffer from “possible broken valve springs.” According to a technical service bulletin from the biggest of the Big Three in Detroit, ...

Performance is all about pushing the envelope. As camshafts become more aggressive in the search for more power, these lobes make life increasingly difficult for valvesprings. This may seem like a ...