First off, are you sure it's a turbo head? They have D-shaped combustion chambers as opposed to heart shaped on a N/A. Secondly, is it cracked? Look for small hairline cracks between the intake and exhaust valves and also cracks extending off any valve into the chamber itself. If it meets both these criteria, grab it! No, it won't make your N/A 2.3 any faster but an uncracked turbo head is the holy grail! You can resell it and probably make enough money to buy a complete turbo engine for your car!
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