Thread: balance the motor or not?

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I can't imagine spending the bucks for a bore, new pistons and rings and maybe a set of rebuilt rods, possibly a crank grind etc without a few more $$ for a balance.

The last Ford 351W I built had some real interesting machining marks after it was balanced - more so then any other that I had had done by this guy so can only imagine how rough it would have been had it not been done.

Balancing is an essential part of engine building. If an engine builder tells you it is not necessary, walk away and find a reputable builder.