Exhaust manifold bolts help form a seal between the block and the manifold. However, these bolts can fail over time. Here's ...

GM Ecotec engines face timing chain failures, oil consumption issues, and exhaust manifold problems that cost thousands in ...

Editor's Note: As inanimate as intake manifolds may appear, they provide a path to both major and minor on-track power gains. Selection is one thing; "tuning" them to specific applications is a blend ...

In the first installment we dealt with the essentials of spec intake manifolds. The story was intended to establish a level of understanding that would enable more specific information to be helpful, ...

No smoke machine? No problem. Learn how to check for engine vacuum leaks using visual cues, soapy water, and DIY tricks to fix stalling and rough idling.

Back in 2009 when LS swaps were gaining ground, we had Mike Copeland write an in-depth story on the things you need to consider when swapping in an LS engine into a vintage muscle car. Mike was the ...