Valvetrain Vigilantes? Camshaft vs. Roller Rockers Test
How much power are roller rockers worth? How do rockers compare to a cam swap? Can I get the same power gains with rockers and not have to tear apart […]
Rocker Rolling with Jesel’s Sportsman Shaft-Mounted Rocker Technology
Tons of options are available when it comes to rocker arms for domestic V8 engines. When examining today’s crop of roller rockers, it becomes clear that a considerable amount of […]
Do Roller Rockers Really Increase Horsepower? Engine Masters Gets Answers!
Conventional wisdom says roller rockers increase horsepower by reducing valvetrain friction—with the biggest benefits showing up at high RPM. But Engine Masters’ David Freiburger and Steve Dulcich are always willing […]
Mailbag: The Cure for Loose Roller Rocker Arm Nuts
Q: I’ve installed a set of steel roller-tip rocker arms on my Ford 302 engine. The cylinder heads are also equipped with aftermarket rocker arm studs and pushrod guideplates. Unfortunately, the […]
Mailbag: Bolstering Valvetrain Components on Camel Hump Heads
Got questions? We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we add new valvetrain components to old “camel hump” cylinder heads. R.B. Las Vegas, […]
Monday Mailbag: Freshening Your Suspension & Setting Valve Lash
Got questions? We’ve got the answers—Mondays when the Summit Racing tech department tackles your automotive-related conundrums. This week, we offer advice for restoring a worn suspension and setting valve […]