Face it: Real engines have roller cams (and we're not talking about factory hydraulic rollers). If you think your flat-tappet mill can make some ponies, then you're in for a real surprise. Cost is ...

Picking the right valvetrain for your engine can be a daunting task. Solid flat tappet, hydraulic flat tappet, solid roller, hydraulic roller; these are the choices, made even more difficult due to ...

Hydraulic roller cams have plenty going for them, including power, reliability, and reduced friction. Heck, even the OEMs have embraced the benefits of hydraulic roller cams. Often thought of as the ...