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LQ4 or LQ9

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Old 08-14-2003, 11:52 AM
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Default LQ4 or LQ9
I am planning on building a stroked 408ci motor, and I was just wondering which block would be better to start with?? Or does it even matter??
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Old 08-14-2003, 11:56 AM
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Default Re: LQ4 or LQ9
If were going to rebuild the motor w/ a new rotating assembly(pistons, rods & crank), I would start w/ a LQ4. The LQ9 is desireable for the stock pistons which increases compression over the LQ4.
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Old 08-14-2003, 11:57 AM
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Default Re: LQ4 or LQ9
If you're doing a stroker setup, all you'll be re-using is the block and heads, which are the same for the LQ4 and LQ9.
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Old 08-14-2003, 12:01 PM
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Default Re: LQ4 or LQ9
I thought the LQ9 had aluminum heads and the LQ4 did not...
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Old 08-14-2003, 12:02 PM
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Default Re: LQ4 or LQ9
Only pre-2001 heads were not aluminum.
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Old 08-14-2003, 12:02 PM
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Default Re: LQ4 or LQ9
i think the lq9 is high-output, it has like 45 more ponies
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Old 08-14-2003, 12:10 PM
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Default Re: LQ4 or LQ9
The "high output" comes from higher compression via flat top pistons, tuning, and I believe a different cam. Either way, none of these will be re-used in a stroker application.
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Old 08-14-2003, 12:13 PM
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Default Re: LQ4 or LQ9
so it really doesn't matter which motor I use as long as I get one made after 2001, alright guys thanx
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