lifters

Q: Last year, I rebuilt my Ford 300 cubic-inch straight-six engine. The head was shaved .010”, the valve seats were reground, and the crank resized. The block was bored and cleaned also. The cam is a Competition Cams 260H grind with matched lifter, pushrods, and rocker arms. I also installed a new oil pump. The problem

Small parts have a big impact on engine performance. For example, a good set of lifters will deliver consistent valve timing and maximum power with good oil control. To achieve these benefits, however, you need to make sure you follow the proper lifter installation procedure. The topic is important enough that Summit Racing created an entire

Like a chance meeting between a jealous wife and a flirty ex-girlfriend, having your pistons and valves come in contact can be very bad—and possibly destructive. That’s why it’s important to check piston-to-valve clearance, especially on racing camshafts and aggressive, high-lift street cams. The camshaft and valvetrain experts at COMP Cams put together this easy, seven-step process for checking piston-to-valve