Comments for Cast Iron Cylinder Heads http://www.castheads.com/blog Cast Heads Sun, 09 Jan 2011 05:44:37 +0000 hourly 1 http://wordpress.org/?v=3.3 Comment on Cast Iron Vs Aluminum Cylinder Heads by Adam http://www.castheads.com/blog/2010/06/cast-iron-cyinder-heads-vs-aluminum/comment-page-1/#comment-92 Adam Sun, 09 Jan 2011 05:44:37 +0000 http://www.castheads.com/blog/?p=12#comment-92 I'm a muscle car car guy, but the BMW engines are magnesium and aluminum engine blocks which allows for lighter weight, and durability for the engine. Lets be honest these new cast aluminum engines last well past 100,000 miles. Back in the 60's if you got an engine up to 100,000 miles, you did good. I’m a muscle car car guy, but the BMW engines are magnesium and aluminum engine blocks which allows for lighter weight, and durability for the engine. Lets be honest these new cast aluminum engines last well past 100,000 miles. Back in the 60′s if you got an engine up to 100,000 miles, you did good.

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