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Generation IV Internal Engine
Head stud questions

Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

Head stud questions

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Oct 14, 2017 | 10:34 AM

#1

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Head stud questions

I have 2009 gen4 6.0 . Putting on set of 243 heads. I have noticed that there are 2 different kits. A 2 bolt or 3bolt kit. Not sure which one I need

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Oct 14, 2017 | 10:37 AM

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You need the late style. Earlier Gen III's had two lengths of head bolts not counting the smaller ones, and later are the same length, again not counting the small diameter ones.

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Oct 14, 2017 | 10:48 AM

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Thanks. Didn’t know if there was a difference between gen 3 and gen 4

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Oct 14, 2017 | 11:10 AM

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LATE Gen III and Gen IV are the same. Only the first few years of Gen III used the different sized head bolts.

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