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Intake and head question

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Old 06-15-2013, 03:43 PM
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Default Intake and head question
Not sure if this is the right place to ask this but here it goes I have a ly6 6.0 I'm building its has 823 heads I'm wondering if the intake off my 4.8 will work on the 6.0 thanks for all the help joe-
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Old 06-15-2013, 03:58 PM
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No it will not. Your 4.8 has cathedral port heads where the 823's are rectangle port. Different head design.
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Old 06-15-2013, 04:01 PM
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What intake do I have to get
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Old 06-15-2013, 04:02 PM
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Or should I use the 4.8 heads and intake as I'm on a little budget
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Old 06-15-2013, 04:03 PM
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Any intake with a rectangle port runner. L92 truck intake, LY6 intake, L76/LS3 car style intake, FAST, Holley, ect. Lots of options
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Old 06-15-2013, 04:04 PM
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Originally Posted by Joe4.8silvy
Or should I use the 4.8 heads and intake as I'm on a little budget
You can do that but I would stick with the rec port. What is the casting number on the 4.8L heads?
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Old 06-15-2013, 04:07 PM
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I'll have to check it when I get back home and let you know I'm not sure
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Old 06-15-2013, 04:17 PM
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Will there be a performance loss if I don't use the rectangular port heads
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Old 06-15-2013, 04:48 PM
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the heads on the 4.8 are casting number 799. what difference would it make using the 823 vs the 799 off the 4.8?
Last edited by Joe4.8silvy; 06-15-2013 at 08:38 PM.
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Old 06-16-2013, 11:06 AM
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Any one ...?
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