Generation III Internal Engine 1997-2006 LS1 | LS6
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need help identifying these rods

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Old Aug 31, 2015 | 04:14 PM
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Default need help identifying these rods


Hi I just tore down my 4.8 today I noticed the rods look pretty beefy for stock there are numbers on them but I can't find out anything about them.
They are stamped gkn 3468 and have a 136 on one side and a 172 on the other side.
On the sides are 217 and 241 on six of them and 207 and 241 on two of them.
Any ideas of what these are and are they worth running?
Thanks for any info

Last edited by mjl1977; Aug 31, 2015 at 07:44 PM.
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Old Aug 31, 2015 | 04:43 PM
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Pics would help. Seems like you have th sturdier gen iv rods.
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Old Aug 31, 2015 | 07:27 PM
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My block is a gen 3 4.8 cam sensor is in back 482 crank flat top pistons with weird numbers on them. I was expecting press on pistons but now see they are floating with clips.
Is this normal for the gen3 4.8 kinda feel like I scored kinda.

Last edited by mjl1977; Aug 31, 2015 at 07:45 PM.
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Old Aug 31, 2015 | 09:00 PM
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yep you got the beefier gen iv rods. gen iii engines started having them after 04.
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