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489 bbc

  1. 489 BBC build

    Performance
    Hi all, Relatively new poster here about my 489 BBC build. I've had plenty of issues along the way but my 489 streeter is on it's way to being built. It's got: - GEN V block decked+honed (all 4 bolt mains replaced with ARP studs) - Wiseco forged pistons +0.030" (21cc dome) - 10:1 measured...
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