70 318 with 340 internals/Cyl Head

mario03srt said

So Can I or can't I determine which crank is in the 70 318 block by checking the balancer, if they were both internally balanced? Am I tracking you? Someone is suggesting checking for a determination.

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I wouldn't trust the balancer myself. Who knows what combination of parts have been thrown together to make the engine work. And really, who cares. If it runs good and doesn't shake the car apart, run it till it blows or take it apart and check all the pieces.