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Old Mar 9, 2010 | 09:49 PM
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Default intake question
i got a 5.3 with cathedral portheads. will an ls1 intake with rectangle port heads fit it?
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Old Mar 9, 2010 | 09:53 PM
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Originally Posted by RNation0001
i got a 5.3 with cathedral portheads. will an ls1 intake with rectangle port heads fit it?
no. cathedral's (ls1) will not work with square (l92/ls3).
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Old Mar 9, 2010 | 09:55 PM
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well no its an ls1 intake with rectangle ports will that work
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Old Mar 9, 2010 | 09:56 PM
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i think its rectangle anyway. i know the orings i put in were rectangle
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Old Mar 9, 2010 | 10:02 PM
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Originally Posted by RNation0001
well no its an ls1 intake with rectangle ports will that work
someone correct me if i'm wrong but i thought all ls1's came with cathedral ports. ls3's l92 etc had square ports and ls7 had a different square port which was not compatable with ls3 or l92 or ls1/ls2. if you have a square port intake it probably is not off an ls1.
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Old Mar 9, 2010 | 10:45 PM
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Post pics that may help to solve the mystery.
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Old Mar 9, 2010 | 10:48 PM
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ill try to tomorrow im at work right now
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Old Mar 9, 2010 | 11:50 PM
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5.3's all had/have cathedral ports, so if you have a passenger car LS1 or LS6 intake manifold it will work just fine. It sounds like you have the right intake by the description.
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Old Mar 10, 2010 | 10:44 AM
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This should help eliminate some confusion...

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