Hole In The Piston? A GM LS V8 Will Still Run

By
Ben Wojdyla
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A nutcase over at TheTurboForums is building a turbocharged 5.3-liter, GM LS V8-powered Mk1 Ford Focus and having trouble with his used engine's rough idle and smoking. After compression testing he pulled the head and found this. [TheTurboForums]

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