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643 Casting LT1 heads

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Old 01-16-2009, 11:48 AM
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Default 643 Casting LT1 heads

Looking to buy a bare (if possible) set of stock LT1 643 casting heads. These are typically found on '94 or '95 cars.

Please provide pics of casting numbers to confirm version.

EDIT: See this thread for reference: http://www.camaroz28.com/forums/showthread.php?t=427346
Old 01-17-2009, 10:02 PM
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I have a set here from a 93 Z28 I just pulled today. (owner used a spare set for porting to keep downtime to a minimum)
Complete and in good shape, nothing stripped or warped.
$175 + shipping from 64083 (usually about $20)

Paypal address is jmontign@yahoo.com

Old 01-19-2009, 02:21 PM
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Can you confirm the casting number?
Old 01-19-2009, 08:26 PM
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Originally Posted by 94Z28rag
Can you confirm the casting number?
'93 aluminum castings are in fact 374, they (and the 643s) provide the most material for porting.
Fits 93-97 Lt1 Fbodies




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