Open Chamber Heads on 69 L89 Corvettes?

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Open Chamber Heads on 69 L89 Corvettes?

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03-13-2013, 06:59 PM

SuperNovaSS SuperNovaSS is offline

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Open Chamber Heads on 69 L89 Corvettes?

Does anyone know if there is any truth to this claim?

3946074 Heads on Ebay

If there is truth to it, I am curious why GM would do it. The L89 was the L71 435HP tripower engine with aluminum heads. If they went to open chamber they would have to design a specific piston for the L89 427 application and make specific shortblocks for that application as well.

Any ideas?

Thanks,

Jason

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