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Originally Posted by Banditperformance
Personaly never done Alum heads, but they won't warp either. When you PC, you heat up the item evenly. With no clamping stresses like when a head is bolted down to a block. And the temp variance in a head when on the engine, from water jacket to cyl surface is extreme, far more than PC temps, so they will be just fine to coat.
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thanks that makes sense .
i ve done many hd heads but never checked to see if it warped and i m about to do some v rod heads and i wanted to make sure before