Considering Engine swap
Thread Starter
Former Vendor
Joined: Nov 2005
Posts: 8,995
Likes: 2
From: Spring Texas
St. Jude Donor '08
I'm not very familier with the LQ series engines. How do they differ from the the LS engines?
Safety Car
Joined: Jun 2005
Posts: 4,977
Likes: 256
From: St. Louis Missouri
What mods are done to your car? There were definitely differences, but none of which affect RWHP. You'll want to keep your redline sub 6500 RPMs unless you upgrade your rod bolts. Oil pump also has to be replaced when the cam goes in.
Thread Starter
Former Vendor
Joined: Nov 2005
Posts: 8,995
Likes: 2
From: Spring Texas
St. Jude Donor '08
Exhaust: SSAC headers, High flow cats, WCC 2x2 X pipe and borla stingers
Engine: 1.8 YT roller rockers
Tune: Custom tune w/ HP tuners
Stock A4: My planitary gear exploded....not sure what that means, but i had forward 1 and 2....and that was it. I got it re-built with heavy duty components and a shift kit. Franks says it's pretty much bulletproof to anything i'm going to do in the road that's remotely legal.
Last edited by TheRadioFlyer97; Dec 28, 2009 at 11:21 PM.
Race Director
Joined: May 2005
Posts: 15,960
Likes: 21
From: West Norriton PA
St. Jude Donor '08
L6 block is better designed than the older 97 - 99 blocks.
The link that independent1 gave you to my old motor was putting down around 525 rwhp using a maggie. It has a LPE blower cam and only 22K miles on it. No oil consumption problems. Motor runs strong. You would be all set to go to the next stage if you wanted to install a maggie.
The link that independent1 gave you to my old motor was putting down around 525 rwhp using a maggie. It has a LPE blower cam and only 22K miles on it. No oil consumption problems. Motor runs strong. You would be all set to go to the next stage if you wanted to install a maggie.
Melting Slicks
Joined: Nov 2008
Posts: 2,938
Likes: 65
From: Rochester Hills MI
the rod bolts are different in the ls6 block. the newer engines can rev higher. there is another difference with some additional holes made for oil passages too. i read that its another factor that allows it to rev higher. i have no idea how it works though.
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Burning Brakes
Joined: Apr 2009
Posts: 946
Likes: 2
They are boost monsters. I've seen several LQ based strokers hit over 1000 rwhp holding 24+ psi. The worlds fastest GenIII truck (turned around a 8.8 1/4 mile on a shake down run and is not completely tuned yet) is an LQ block (but to be fair, it's half hard-blocked). Parish8 ran low 10s (10.04 I think) 3 years ago with an LQ block stroker (408ci) and lots of boost. I think he was at 1080ish rwhp and 1175ish rwtq.
They are a very common truck engine choice -- easy to stroke, high strength, lots of power potential. You can pick up a brand new block for something like $700 I think, and can find a lot of deals in the used market (check out your local craigslist and performancetrucks.net).
Drifting
Joined: Nov 2003
Posts: 1,539
Likes: 3
From: South al
The LQs are iron 6.0L blocks that cam in the trucks. The LQ4 used a dished piston and cam stock with 9.5:1 CR, the LQ9 was 10.1:1 with flat tops and stronger rods.
They are boost monsters. I've seen several LQ based strokers hit over 1000 rwhp holding 24+ psi. The worlds fastest GenIII truck (turned around a 8.8 1/4 mile on a shake down run and is not completely tuned yet) is an LQ block (but to be fair, it's half hard-blocked). Parish8 ran low 10s (10.04 I think) 3 years ago with an LQ block stroker (408ci) and lots of boost. I think he was at 1080ish rwhp and 1175ish rwtq.
They are a very common truck engine choice -- easy to stroke, high strength, lots of power potential. You can pick up a brand new block for something like $700 I think, and can find a lot of deals in the used market (check out your local craigslist and performancetrucks.net).
They are boost monsters. I've seen several LQ based strokers hit over 1000 rwhp holding 24+ psi. The worlds fastest GenIII truck (turned around a 8.8 1/4 mile on a shake down run and is not completely tuned yet) is an LQ block (but to be fair, it's half hard-blocked). Parish8 ran low 10s (10.04 I think) 3 years ago with an LQ block stroker (408ci) and lots of boost. I think he was at 1080ish rwhp and 1175ish rwtq.
They are a very common truck engine choice -- easy to stroke, high strength, lots of power potential. You can pick up a brand new block for something like $700 I think, and can find a lot of deals in the used market (check out your local craigslist and performancetrucks.net).
,Also look @ the weight of the Truck vs the c5 corvette ,not to mention the aerodynamics of the c5 ,can u say BEAST!!
Ya u can buy a Brand New Lq9 block from scogginDickey for 700.00 ,this is where i bought mine
Burning Brakes
Joined: Apr 2009
Posts: 946
Likes: 2
Yep -- Parish8's truck was 4800 for the 10.04 run. The 8.8 truck was in the 4300 range I think. Either setup in a vette = rocketship that eats tires for breakfast lol.
Thread Starter
Former Vendor
Joined: Nov 2005
Posts: 8,995
Likes: 2
From: Spring Texas
St. Jude Donor '08
Former Vendor
Joined: Apr 2006
Posts: 2,470
Likes: 2
From: Portland OR
St. Jude Donor '10-'11-'12
Why not spend $3400 on a proper bottom end 383 
and put it back together as is. An LS2 isn't forged and if your going to do it, you might as well do it right. I know people run low boost on stock bottom ends but it isn't optimal. Then having to run a meth kit. Why not just do it right from scratch and then not worry about things.
We can build it for low compression and then you can boost it when your ready to or for 7k we can build you a long block with AFR 205's on top and make a solid machine out of it.
and put it back together as is. An LS2 isn't forged and if your going to do it, you might as well do it right. I know people run low boost on stock bottom ends but it isn't optimal. Then having to run a meth kit. Why not just do it right from scratch and then not worry about things.We can build it for low compression and then you can boost it when your ready to or for 7k we can build you a long block with AFR 205's on top and make a solid machine out of it.
Thread Starter
Former Vendor
Joined: Nov 2005
Posts: 8,995
Likes: 2
From: Spring Texas
St. Jude Donor '08
Why not spend $3400 on a proper bottom end 383 and put it back together as is. An LS2 isn't forged and if your going to do it, you might as well do it right. I know people run low boost on stock bottom ends but it isn't optimal. Then having to run a meth kit. Why not just do it right from scratch and then not worry about things.
We can build it for low compression and then you can boost it when your ready to or for 7k we can build you a long block with AFR 205's on top and make a solid machine out of it.
and put it back together as is. An LS2 isn't forged and if your going to do it, you might as well do it right. I know people run low boost on stock bottom ends but it isn't optimal. Then having to run a meth kit. Why not just do it right from scratch and then not worry about things.We can build it for low compression and then you can boost it when your ready to or for 7k we can build you a long block with AFR 205's on top and make a solid machine out of it.
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
YES.
many ppl have had blown up engines, bad choices on engine mods which they will not admit, and just said F it and put in an LS6 crate and had it tuned.
then again
Sounds really good
many ppl have had blown up engines, bad choices on engine mods which they will not admit, and just said F it and put in an LS6 crate and had it tuned.
then again
Originally Posted by 99blancross
7k we can build you a long block with AFR 205's on top and make a solid machine out of it.
Former Vendor
Joined: Apr 2006
Posts: 2,470
Likes: 2
From: Portland OR
St. Jude Donor '10-'11-'12
