DOHC Archives - Engine Builder Magazine
All About Timing Chains

If you’re building late-model dual overhead cam (DOHC) engines, you’ve probably noticed that a chain rather than a belt drives the camshaft. But why is this the case when chains are more expensive to produce?

Using a Camshaft Alignment Kit to Service Ford, Mercury and Mazda Valvetrains

Locking the camshaft and crankshaft down together provides an accurate method to ensure the motor will remain in time during the repair process. The Camshaft Alignment Kit (37410) from Lisle Corporation is perfect for servicing the timing belt, chains, head gaskets or other valve train repairs on Ford, Mercury and Mazda vehicles. The kit comes

Service Issues on Ford 4.6L SOHC & DOHC Engines

In 2005, Ford introduced a three-valve (3V) SOHC version of the 4.6L for the newly restyled retro-look Mustang. Major changes included the use of two intake valves and one exhaust valve per cylinder to increase air velocity, torque and power, variable cam timing and a weight-saving aluminum cylinder block. Ford’s overhead cam 4.6L V8 engine has been