Power Test: Cast Manifolds vs. Headers

Roller vs. Flat-Tappet Cams!

Do you want to spend big bucks on a hydraulic roller cam setup or low bucks on the old-school flat-tappet cam? The answer depends on your desire for power and durability, and this episode of Engine Masters will spell out the differences in the two camshaft designs so you can decide what's best for your car. The test engine here is a 500hp, 400ci small-block Chevy crate engine from BluePrint Engines, and the camshafts and lifters are from Isky Racing Cams.