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Subject My opinion. Take it for what it's worth.
Posted by MixManMash on April 12, 2019 at 5:50 PM
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In Reply To What is the concensus on thermo-coating iron manifolds? posted by ZXoltan on April 12, 2019 at 12:08 PM
Message I have MS Manifolds (cast iron).

I had my manifolds coated to retain the heat inside. I did that years ago (10ish) and have not noticed any cracks.

I don't have empirical evidence if it helped with under hood temps.

Typically, you would want the heat to be retained to help spool the turbos faster.

I believe the coatings I used were by Cerakote. I even had the turbine housings coated.

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