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Old 10-19-2004, 09:18 PM   #1
meathead95
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head ?

are these the same heads as the vortecs everyone is talking about?

14101083...87-up...350..........Gen.I, also used on crate motors, 285 or 300 hp, 64cc
chambers, 72' center manifold bolt
angles
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Old 10-19-2004, 09:30 PM   #2
CHEVYE
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usually they are # 10239906
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Old 10-19-2004, 09:33 PM   #3
CHEVYE
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try #12558062 they are 64cc. with 170 runners, also pretty popular.
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Old 10-19-2004, 09:41 PM   #4
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the vortec heads didn't come out till 1996 they are easy to spot they dont have any bolt holes in the center at all! If the heads are bolted on a motor the intake bolts are perfectly vertical and their are 8 of them.
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So Far my best Times are:

Motor only:
6.44 1/8 @ 104.13
10.39 1/4 @ 125.83

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Old 10-19-2004, 10:00 PM   #5
meathead95
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thanks, i already have these heads and was wondering if they where any good.
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Old 10-19-2004, 10:33 PM   #6
browndawg71
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what people refer to as vortec heads are usally 96 to 2000 model heads. the 87 up were also center bolt vavle cover heads but they are not a good performance head. the vortecs are damn good performance heads for someone on a budget
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