since my truck's 5.3 liter motor currently has 123,xxx miles on it, i'm starting to plan for what to do when the motor takes a ****. I would like to mod it to make it run better until then, but see no point in mods that will not fit on the motor that will replace my 5.3-a 6.0 HO 6000 LQ9 out of an escalade... I need to know whether these parts will fit..

-The Other Guys Headers?
-UPD Intake?

what else will i be able to retain if i were to mod the current 5.3? Also, when buying these lq9 motors, what all do most of them come with? harness and all that? how difficult is the swap-as far as the harness goes...last question-how much is a lq9 crate motor?

thanks

nitin

 

when you swap to the 6.0 most people just toss in the longblock. the harness is the same, the program is a little diferent but it will run fine on the 5.3 program. you might want to invest in atap and ls1edit if you plan on haveing a moded 6.0, you will want to mess with shift points, idle speed, and probably have to program for bigger injectors. there is lots you can do with ls1edit if you like to fiddle with that kind of thing.

no idea on the cost of a new 6.0 but if you are waiting for the 5.3 to die it could be another 123000miles, i haven't heard of anyone wearing one out. all the stuff that bolts on a 5.3 will bolt right onto the 6.0. headers, intake, pullys, exhaust, stall....

 

Nitin,

those 5.3s will go 200,000 miles easy. a 6.0 lade swap would be phat in there...with the seats and front nose and seats and a big ******* lift kit...

take it ez

Jeremy

 

awesome information guys! the reason i ask about the 6.0 liter motor is because i recently aquired another TNT F2 wet kit <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> haha, and it really pisses me off trying to get up to speed on I-35, so i'm seriously considering throwing the kit on there, which will drastically cut down on the motors life...

once again, great info, i'm gonna stop by the dealership tommorrow and check on the LQ4 crate motor (i hear the LQ9 is higher compression and requires premium fuel, which i don't want-also they rate their peak #'s at 5200 rpm whereas the others are rated at 5000 rpm for the peak which as redhawk said probably accounts for the "45" hp difference in the two motors. Sort of like the ls1's in the 97-99 vettes, vs, the ls1's in teh 98-00 ls1's-same motors, same hp levels, different marketing ploys because the vette had to be the bigdawg....

thanks again guys

nitin

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> once again, great info, i'm gonna stop by the dealership tommorrow and check on the LQ4 crate motor </font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">The dealership will probably charge a grip. Start looking around ebay, the for sale sections in this board and the other, and your local junk/salvage yards. You could probably find a good 6.0 long block for under $1,500 and use all of your 5.3 parts on it.

Kent

 

all the accessories and everything will work just fine?

 

All the accessories will swap. And the LQ4s compression is like 9.5:1 while the LQ9s is 10.0:1, both are "designed" to run on 87 octane. Yes, the cheap stuff lol. And theres not much of a difference other then that between the LQ4 and LQ9, and you can get a bare 6.0 block from Jim Pace for like $620, if you want to completely assemble the motor yourself..

 

LQ4 has dished cast aluminum pistons,
LQ9 has flattop hypereutectic pistons. I'd rather spray on the stronger pistons. I think the LQ9 is about $3500-3600?

 

I found some good info... I live in Canada and the first auto wrecker I called ( about 1 min ago) had a 6.0 LQ4 up for grabs... No damage to the motor at all. 125,000 km (90,00Miles) on this 6.0 block. and he gave a price of 2700$ (Can $$$$) so that would work done to about 1800 - 1900$ american... I might just pick this motor up... Vrooommmm Vroom.

 

Jonny, thats alot of miles for that price. Make sure its a 2001 or newer motor with aluminum heads. Look up Texas Terminators post on transmission problems for more details.