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Determining Head Bolts for 04

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Old 01-18-2011, 06:23 PM
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Default Determining Head Bolts for 04
In the middle of the 04 6.0 production they changed the head bolts. How can I determine what bolts my 04 lq4 needs?
I don't have the original head bolts.
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Old 01-18-2011, 06:25 PM
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Originally Posted by viciousknid
In the middle of the 04 6.0 production they changed the head bolts. How can I determine what bolts my 04 lq4 needs?
I don't have the original head bolts.
You could use a rod or something to check the lengths of all the bolt holes in the block.
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Old 01-18-2011, 06:28 PM
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It has 04+ new cam bearing sizes. Would that indicate the newer head bolts as well?
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Old 01-18-2011, 06:28 PM
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Originally Posted by 00ChevyScott
You could use a rod or something to check the lengths of all the bolt holes in the block.
Do you know the length of 1st and 2nd design bolts?
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Old 01-18-2011, 06:29 PM
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Originally Posted by viciousknid
Do you know the length of 1st and 2nd design bolts?
1st design will have 3 different length bolts



2nd design will have 2 different length bolts

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Old 01-18-2011, 06:33 PM
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that'll work. I'm thinking they likely changed the cam bearings and head bolt designs at the same time so I likely need the 2nd ones.
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Old 01-19-2011, 01:57 PM
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both GM part numbers will work with either! The first production the middle two bolts where shorter in length, the sencond production they were all the same.

word of advice - use ARP
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