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Old 12-27-2021, 03:04 PM
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johnta1 johnta1 is offline
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The Service Manual shows a '+' next to the YC not a dagger.








Being an early engine/block, there may be more people interested in it.
Later blocks were plentiful.
And possibly the people may like the early block compared to the later ones.
But it is not a 455 HO engine. The Engine code (YC) determines what was put in/on the block.
But everything can interchange to make that block what you want.


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