Quote:
Originally Posted by ike84
maybe this is a stupid question, but what's wrong with iron sleeves? Strong, durable, easily sourced, and not dependent on any of this stuff? Tuners doing conversions from na to fi have been doing this for a long time with good results. Is there something about this engine that doesn't play well with iron sleeves though?
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Iron dissipates heat at a different / slower rate than alum, so your engine runs hotter.