INTERNAL ENGINE MODIFICATIONS Valvetrain |Heads | Strokers | Design | Assembly

LQ4 to LQ9

Old Apr 19, 2006 | 02:45 PM
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Default LQ4 to LQ9

I have a LQ4, thinking bout getting a set of LQ9 pistons and rods. Will my LQ4 crank work? Im pretty sure it will, just want to be 100% sure before I purchace.
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Old Apr 19, 2006 | 02:47 PM
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Yep The rotating assembly should be rebalanced though
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Old Apr 19, 2006 | 02:55 PM
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we just bolted the damn tranny to that motor, now you want to pull the motor? this is going to send the stock prices on Anheiser Busch threw the roof
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Old Apr 19, 2006 | 02:58 PM
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I was thinking more like pulling the heads, getting them milled while Im doing this, dropping the oil pan, and swapping the pistons, but I guess it would need to be rebalanced wich means pulling the whole crank. Hmmm.
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Old Apr 19, 2006 | 03:11 PM
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So is this how you plan to paddle my ***? If i were you and while you are at it. get the block bored and put some forged pistons in it. Its not THAT much more than if you were gonna buy the rods and the pistons brand new. Then you can spray....
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Old Apr 19, 2006 | 09:16 PM
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Seriously Matt if you are going to go to that expense put some forged pistons in it and spray a 250 shot easily all day long. Alot of work for minimal gain IMO. The rotating assembly will definately have to balanced since the LQ9 rods a substantially heavier than the LQ4 rods. Not to mention you will need the cylinders walls honed for the new rings you would to seat right. Put some forged pistons in it and be done with it
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Old Apr 21, 2006 | 09:32 AM
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Originally Posted by 1slow01Z71
Seriously Matt if you are going to go to that expense put some forged pistons in it and spray a 250 shot easily all day long. Alot of work for minimal gain IMO. The rotating assembly will definately have to balanced since the LQ9 rods a substantially heavier than the LQ4 rods. Not to mention you will need the cylinders walls honed for the new rings you would to seat right. Put some forged pistons in it and be done with it

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