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Amazon.com: Diamond Power Intake & Exhaust Valves Replacement for TOYOTA 4RUNNER 4.0L DOHC : Automotive
![Cylinder head back from the machine shop. Exhaust valves very white. Burning coolant maybe? Anything I should watch out for before reassembling? : r/prius Cylinder head back from the machine shop. Exhaust valves very white. Burning coolant maybe? Anything I should watch out for before reassembling? : r/prius](https://i.redd.it/ouly5xd07c9a1.jpg)
Cylinder head back from the machine shop. Exhaust valves very white. Burning coolant maybe? Anything I should watch out for before reassembling? : r/prius
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