Boring a 302 engine 60 over can increase its displacement and power, but it may also compromise engine longevity and reliability for everyday use. Typically, a 30 or 40 over bore is more common for street applications, as it maintains better wall thickness and cooling characteristics. If you're considering this modification, ensure that the engine is properly built with quality components to handle the increased stress. Ultimately, it depends on your driving habits and how much power you desire versus reliability.
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