ZL-1 stamping numbers - The Supercar Registry

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ZL-1 stamping numbers

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#20

10-01-2000, 06:37 AM

GMH454

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Re: ZL-1 stamping numbers

Good point Joe. Its 40th over a standard bore. Which is funny cause I think the Green Book says they should only be bored 30th. Still looks to have plenty of strength between the bores, and they are sleeved. I have checked them before and they are the standard Zl-1 numbers.
Are the ZL-1 casting dates known anyone ?

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