Technical Resources

What if your Ecotec is leaving horsepower on the table even though the timing marks line up perfectly? From decked blocks and milled heads to VVT deletes and cam degreeing,...

Your Ecotec’s timing marks can line up perfectly and your cam timing can still be wrong. Milling the cylinder head, decking the block, aftermarket camshafts, VVT deletes, and normal manufacturing...

Oil in the intake tubing. Oil in the throttle body. Oil pooling inside the intake manifold. The dipstick pushing itself out of the tube. Rear main seal leaks that keep...

Most Ecotec “kicked rocker” failures don’t happen instantly — the valvetrain usually loses control long before the rocker exits the engine. Hydraulic lash adjusters become unstable under high RPM, aggressive...

Most racers think stock Ecotec valve springs are “fine” until catastrophic valve float occurs — but the valvetrain usually starts losing control much earlier. Learn why rocker instability, valve bounce,...

While the OEM balance shaft assembly performs adequately in commuter vehicles, sustained high RPM operation exposes major weaknesses in sprocket durability, chain harmonics, timing stability, and oiling system reliability.