Thread: L78 396/375 HP Long Block CKO Stamping
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Old 04-30-2006, 04:43 AM
Rick H Rick H is offline
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Default Re: L78 396/375 HP Long Block CKO Stamping
Chuck,
No BB engine built after the 1970 model year was designated as an L78 unless it was used as a replacement engine. CKO was not used in 1971. Never used in 1972 as well.

Any engine used as a replacement was stamped CE. I would really question any 1972 replacement engine with a 1970 factory stamp.

Please post pictures of the stamp and casting numbers.

Rick H.
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