featured Reground Ecotec Cams & Valve Stem Height: Why Geometry Matters
Running reground Ecotec cams changes more than lift and duration. Learn how reduced base-circle diameter affects rocker geometry, lash and valve stem height—and why BK Racing developed extended-tip valves and...
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Ecotec Valve Springs, Exhaust Valves & RPM: Building the Valvetrain as a System
Build a high-RPM Ecotec valvetrain as a complete system. Learn how valve springs, exhaust valves, lightweight retainers, solid lash and camshaft geometry work together for reliable valve control in racing...
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21-4N vs Inconel Ecotec Exhaust Valves: Which Material Should You Run?
21-4N vs Inconel vs OEM Ecotec Exhaust Valves: Which Material Should You Run? Is Inconel automatically the best material for an Ecotec exhaust valve? No. Inconel is an exceptional high-temperature...
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