Repro Pontiac round port/Oldsmobile W30 cyl heads

[agtw31]

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Anyone that knows anything about the W30's knows that unless it's a 72 or has bullet proof documentation, you treat it as a "could be" W30.

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w-31's are sort of the same way,except it's the balancer,not the heads that people seem to look for,or a broadcast sheet.

wait until those reproduction w-31 balancers start hitting ebay.
priced at $800.
looks like production will be starting soon,too.