LQ4 or LQ9

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Aug 14, 2003 | 11:52 AM

Smoky02

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From: Navarre, FL

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??

Aug 14, 2003 | 11:56 AM

IslandTahoe

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From: Honoulu, Hawaii

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.

Aug 14, 2003 | 11:57 AM

silent1

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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.

Aug 14, 2003 | 12:01 PM

Smoky02

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From: Navarre, FL

Re: LQ4 or LQ9

I thought the LQ9 had aluminum heads and the LQ4 did not...

Aug 14, 2003 | 12:02 PM

silent1

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Re: LQ4 or LQ9

Only pre-2001 heads were not aluminum.

Aug 14, 2003 | 12:02 PM

Deckhand

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Re: LQ4 or LQ9

i think the lq9 is high-output, it has like 45 more ponies

Aug 14, 2003 | 12:10 PM

silent1

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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.

LQ4 or LQ9

LQ4 or LQ9

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