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Guys I am new to this forum. I have been doing some research and would like to know yalls opinion. I have a 2006 Chevy Z71 with the L33 in it right now. I am having problems wiht the engine and am thinking about replacing it. I would like to put a 6.0L lq9 in it since I have read that it is a direct swap for a 5.3 all I would need is the long block and a tune. I this a good idea or would it be better to just put an L33 back in it?
Great idea no replacement for displacement. /thread
Will the weight difference betweent the two be an issue?
Only Avery small difference and power to weight will greatly favor power.Quote:
Originally Posted by gottahunt247
If the L33 has the 243/799 heads, keep them and bolt them to the LQ9.
+1 up the compression and make that thing fly. Actually on second thought LQ9 has flat tops and is already 10:1 add the smaller combustion chambers on the 243s almost 11:1 you might be a little high on pump gas and idk about ptv issues should be safe. Throw an LS6 cam in there and bam iron LS2.Quote:
Originally Posted by Chevy-Art
I just replaced my spark plugs not to long ago so they are fairly new. Will they swap over to the 6.0 as well or is the gap different?
L33 was just an Alum block with flat top pistons and 862/706 heads.Quote:
Originally Posted by Chevy-Art
I have a 2005 L33 with factory 799.Quote:
Originally Posted by bangbangskeetskeet
Is the flex plate the same for both engines?
LQ9 yes pre2001 lq4 no.
Sorry to bring back this old thread, but has anyone done this swap without any major complications? I'm looking to do this myself. Everything I've read, and been told says that this is an easy swap, but I like to gather as much information as possible.
Just did this 2 weeks ago and have been driving it everyday since. I went from a 4.8 to 6.0, but same thing. Its literally a direct swap out, no problems. I just used all the sensors from my old 4.8 since i knew they were good.