The APEXi metal headgaskets provide upgraded protection on high horsepower engines. Factory headgaskets cannot withstand the pressures of high output operation and often cause the engine to blow. This condition is actually caused by a failure in the factory headgasket. APEXi recommends replacing the factory headgasket with a metal one before gasket failure causes more damage to the engine. The gaskets are all designed engine specific and provide a complete and secure seal.
APEXi valve springs are designed to prevent high RPM valve float. Valve float is a condition that some engines may experience when using high performance cam shafts with stock valve springs. Often times, the stock valve springs are too weak to effectively secure the wiper pad of the rocker arm or bucket to a high lift cam lobe at high RPM operation. When the rocker is allowed to break contact with the cam lobe this causes the valve to float. This can result in damaged camshafts, rockers/buckets, and valves.
APEXi racing valve springs are the ideal compliment to the A'PEXi camshaft series.
The most restrictive part of any induction system is the factory intake manifold. Knowing this, Skunk2 Racing went to great lengths to design and manufacture an appropriate aftermarket replacement. Skunk2 Racing manifolds are designed to maximize flow as well as increase the effects of wave scavenging at each engine"s key operating RPM range. Each manifold is designed to use all the stock sensors and auxiliaries.
Some key features: -Single-stage intake manifold design
-Significant mid to high range power gains
-Factory throttle body may be reused
-Utilizes all factory sensors
-Larger plenum and runners to optimize horsepower