aluminum head erosion

[Andy]

I put a set of new Eldebrock heads on and had to remove them about a year later. The electrolisis had almost ruined them. I had always had good anti freeze in the engine. The cylinder block was extreamly clean inside. I went back with graphite gaskets.

[flatjack9]

Originally Posted by Andy

I put a set of new Eldebrock heads on and had to remove them about a year later. The electrolisis had almost ruined them. I had always had good anti freeze in the engine. The cylinder block was extreamly clean inside. I went back with graphite gaskets.

I had a set of the new block letter heads on my engine for a year. Took them off and they were just like new. Also used copper gaskets.