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LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

What head casting numbers are the good numbers?

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Old Jul 30, 2005 | 11:12 AM
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Blownbird355
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From: Huntington, W.V. 25701
What head casting numbers are the good numbers?
Which head casting numbers do the porters like?
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Old Jul 30, 2005 | 03:04 PM
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Valkyn71
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Re: What head casting numbers are the good numbers?
374s are the most desierable, with 561 being the least.

Whatever the other one is is in the middle.
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Old Jul 30, 2005 | 03:48 PM
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Blownbird355
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Re: What head casting numbers are the good numbers?
643 maybe??
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