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Old 06-10-2003, 02:00 PM   #1
dubie
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intake bolts

What size bolts are used to fasten down the intake manifold on a 350? It's a stock 4 barrel cast intake
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Old 06-10-2003, 02:59 PM   #2
Longhorn Man
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3/8 bolt...or 9/16 if you are measuring the head.
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Old 06-10-2003, 04:17 PM   #3
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how long are they and are they coarse threaded?
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Old 06-10-2003, 04:31 PM   #4
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definately corse thread and they were about 1 1/2 inches long if i remember right
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Old 06-10-2003, 04:52 PM   #5
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Two different lengths, but it's been to long to remember exactly what that length was.
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Old 06-10-2003, 04:53 PM   #6
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Wait, maybe I had a couple accessories bolted down on top of the manifold, thus requiring longer bolts. I'll have to check when I get home. Sorry for the confusion.
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Old 06-10-2003, 04:54 PM   #7
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Last time I did it I just went to advance auto (do you have them up there?) and got chrome ones. They were only 10 bucks or so.
An inch and a half sounds about right, but it has been about a year since I had mine off now...
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Old 06-10-2003, 05:13 PM   #8
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thanks for the help guys
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