Quote:
Originally Posted by William
Great stuff from someone who was there!
Any idea why there were two casting numbers for the same block? The production ZL-1 block had two numbers; no differences noted. One of the earliest cars had an 053 block.
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Maybe one was intended to be the casting number, and the other was some up-level assembly number?
K
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'63 LeMans Convertible
'63 Grand Prix
'65 GTO - original, unrestored, Dad was original owner, 5000 mile Royal Pontiac factory racer
'74 Chevelle - original owner, 9.56 @ 139 mph best
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12-06-2022, 04:43 PM
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