From reading posts on this wonderful website... I now HAVE to do the swap.. My question is whats the difference between the lq9 and the lq4? I think i found a great deal on a 02 lq4 motor and tranny for $1600 with 60k on it. Is that a good starting point? Whenever i swap the engines around who can reprogram my cpu? thanks for any advice you guys can give me!!
Better rods and flattop pistons in the LQ9 (higher compression) otherwise most of it's the same...unless they are both early versions where the 9 also has floating pistons, right?
what is wrong with your 4.8 and how many miles are on it?
Theres nothing wrong with it... Just wanting to go with the 6.0... Its got 68k on it.
That doesnt seem like a bad price. What route are you planning to build the motor? If you want the turbo or supercharge then go LQ4. If you want to build an N/A beast go LQ9. The LQ9 has 45 more stock HP I believe than the LQ4. If you get an LQ9 you can keep your current transmission.
DANIEL CAMMED SS 13.46 @ 98.17-- 8.58 @ 80.31
2003 Silverado SS / LQ9 6.0L / Wheatley 93 Octane Tune / 224/228 .581 .588 110lsa / Patriot Gold Dual Springs / Comp Hardened Push Rods / Circle D 3800 stall / Pacesetter LT's / 4:10 Gears / Transgo HD-2 Shift Kit / K & N Cold Air Intake / Corvette Servo / Aeroforce Interceptor / Autometer Narrorband(Wideband on the way) / Mobile 1 Synthetic / Single Chamber Flows with X Pipe / Cats Delete with Cutouts
It's a 20 horse difference stock 325 vs. 345 in most trucks.
and only cause of .5 in compression
for ever .5 in compression its roughtly 15-20hp gain or loss
2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
2002 Silverado - 427Lsx w/ Twin gt4202s
2010 Silverado crewcab Z71 - 5.3litre w/ procharger
2000 Wrangler - 5.3litre with some stance
2014 Xsport- 3.5 Eco boost
412 Motorsports
it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference
The earlier LQ4s had 300 right?Originally Posted by GasGuzzler
DANIEL CAMMED SS 13.46 @ 98.17-- 8.58 @ 80.31
2003 Silverado SS / LQ9 6.0L / Wheatley 93 Octane Tune / 224/228 .581 .588 110lsa / Patriot Gold Dual Springs / Comp Hardened Push Rods / Circle D 3800 stall / Pacesetter LT's / 4:10 Gears / Transgo HD-2 Shift Kit / K & N Cold Air Intake / Corvette Servo / Aeroforce Interceptor / Autometer Narrorband(Wideband on the way) / Mobile 1 Synthetic / Single Chamber Flows with X Pipe / Cats Delete with Cutouts
iron
2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
2002 Silverado - 427Lsx w/ Twin gt4202s
2010 Silverado crewcab Z71 - 5.3litre w/ procharger
2000 Wrangler - 5.3litre with some stance
2014 Xsport- 3.5 Eco boost
412 Motorsports
it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference
Yes, the 99-00 LQ4 has 300. The 99 has iron heads and block.
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