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which heads? L92s or stage 2 243s???

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Old Feb 15, 2011 | 03:19 PM
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Default which heads? L92s or stage 2 243s???

figured i would post this here as well as pt.net since i know theres alot more people here on tech, well i finally bought my brand new LQ9 shortblock, and im trying to decide on what heads to go with. Keep in mind im very ignorant when it comes to heads. I know next to nothing about them.

Im thinking about running a ms4 cam, MAYBE a trex cam, and thats a big maybe. and im thinking about getting the FAST 102 intake, anyways my goals are to have a mid to high 11 second truck, N/A. I know all the bolt ons i will need, headers, cam, converter, gears etc, just dont know the best cam/head combo to go with.

the truck is a 2002 reg cab stepside sierra. so what heads do you all think would get me as close to my goals as possible?
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Old Feb 15, 2011 | 03:36 PM
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It is going to take alot of converter and all the rest of the components to reach that goal. There are alot of n/a trucks in the valley going fast with similar combos.
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Old Feb 15, 2011 | 03:54 PM
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L92's, L76 IM, big vertor and a custom cam.....Cheaper than ported 243's + FAST to boot!!
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Old Feb 15, 2011 | 04:31 PM
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Originally Posted by SOMbitch
L92's, L76 IM, big vertor and a custom cam.....Cheaper than ported 243's + FAST to boot!!
^ ^
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Old Feb 15, 2011 | 04:43 PM
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I might have missed it, but is the truck a 6.0L? If it's a 4.8 or 5.3, you can't use the L92 heads. If it is a 6.0, I'd definitely go with the L92 heads.

Keep in mind, getting a truck to high 11s N/A and getting a car to high 11s N/A are 2 different tasks.
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Old Feb 15, 2011 | 08:12 PM
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Matt and texas speed said the MS4 cam with L92 heads will not clear piston to valve on a LQ9, any truth to this?
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Old Feb 16, 2011 | 03:29 AM
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flycut
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Old Feb 16, 2011 | 06:42 AM
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you can get the l92 heads from SDPC for a good price.get a custom cam that don't need fly cutting if you don't want to fly cut.
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Old Feb 16, 2011 | 08:34 AM
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If the motor is out of the car flycutting is pretty easy.....
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Old Feb 16, 2011 | 09:41 AM
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Originally Posted by SOMbitch
If the motor is out of the car flycutting is pretty easy.....
This.
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Old Feb 16, 2011 | 11:24 AM
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Originally Posted by PREDATOR-Z
flycut
how much to cut ?

Both sides, or just the intake valve?
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Old Feb 16, 2011 | 11:27 AM
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Originally Posted by dry_kill
Matt and texas speed said the MS4 cam with L92 heads will not clear piston to valve on a LQ9, any truth to this?
And in addition to that, even with flycutting the pistons, the Magic Stick is not the best choice/design for the rectangle port heads. We can get you setup with a much better combo than that for sure!
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