Cylinder head porting is one of those garage mods that lives somewhere between speed-shop legend and flow-bench science. Also referred to as port and polish, the idea is simple: Open up the intake and ...

Virtually all current production-based cylinder heads incorporate a cross-flow design with intake ports (Photo B) located on one side of the head and exhaust ports (Photo C) on the opposite side. Some ...

In the pursuit of big power on a low budget, our '93 5.0L SSP coupe has shown a serious improvement with just a few bolt-ons and a couple of old tricks. Last issue, we advanced the timing; installed a ...

More than 20 years after the first Gen III LS1 V8 rolled off the assembly line for the 1997 Corvette, it seems there are LS cylinder heads everywhere, and even more stories that have tested and ...

Part 2 Of Our Cylinder Head Roundtable. Our All-Star Cast Of Experts Chime In On The Most Intriguing Aspects Of Cylinder Head Port Design. The intricacies of airflow dynamics through a cylinder head ...