The hottest cylinder head on the small-block Chevy hit parade right now is the Vortec iron head. It's extremely affordable and flows a bunch of air for a stock production iron head with a 170cc port ...

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 ...

Replacing potentially faulty valve springs in 3,238 Lexus vehicles to be recalled in the UK will take between seven to 22 hours per car, depending on the model, the automaker said. Affected UK models ...