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Old 09-14-2012, 08:27 PM
489chevelle 489chevelle is offline
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Building a 489 stroker

Im wanting to build a 489 big block shevy and had a few questions. I have a stock 454 that is already bored .030. i was wondering what rod length i would need and would i have good valve clearance with the stock flat top pistons with the small valve releifs? Any info would be appretiated thanks
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