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2009 silverado 5.3 to 6.2 engine swap HELP!

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Old Jun 19, 2012 | 03:01 PM
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Default 2009 silverado 5.3 to 6.2 engine swap HELP!

I have a 2009 silverado 5.3 with a six speed tranny swaping to a 6.2 how ever there a couple of question I have about the swap in regards to sensors the 6.2 has a sensor in the front that appears to be for the camshaft and the 5.3 has the sensor in the rear near the oil pressure switch which looks to be the same but want to make sure
Attached Thumbnails 2009 silverado 5.3 to 6.2 engine swap HELP!-018.jpg   2009 silverado 5.3 to 6.2 engine swap HELP!-020.jpg   2009 silverado 5.3 to 6.2 engine swap HELP!-025.jpg  
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Old Jun 19, 2012 | 03:22 PM
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Originally Posted by Prahaian
I have a 2009 silverado 5.3 with a six speed tranny swaping to a 6.2 how ever there a couple of question I have about the swap in regards to sensors the 6.2 has a sensor in the front that appears to be for the camshaft and the 5.3 has the sensor in the rear near the oil pressure switch which looks to be the same but want to make sure
Your 6.2 should have 2 connections up front, one for VVT and the other is the cam position sensor, the connector on the back of your other engine is for DOD (displacement on demand) if you do a VVT delete on the 6.2l it will be a complete drop in swap! You will need:

-non VVT 4x cam sproket (06 and up vette ls2/ls3)
-LS2 chain and dampner/tensioner
-non VVT front cover or LS2 style front cover

OR you can just swap the non VVT parts over from your 5.3, You will have to have the DOD that your old 5.3l had turned off in the tune once you get the 6.2 up and running!

Last edited by 89LS1FOXER; Jun 19, 2012 at 03:31 PM.
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Old Jun 19, 2012 | 03:30 PM
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what all do you need to do a DOD/vvt delete and do you just leave those sensor unplugged? also do you need to swap out the covers that sit on top of the block from the 5.3 to the 6.2? (5.3 comes with the plug in the rear)

My engine is a l9h if that makes any difference
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Old Jun 19, 2012 | 03:46 PM
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Originally Posted by Prahaian
what all do you need to do a DOD/vvt delete and do you just leave those sensor unplugged? also do you need to swap out the covers that sit on top of the block from the 5.3 to the 6.2? (5.3 comes with the plug in the rear)

My engine is a l9h if that makes any difference
Leave the DOD off of the 6.2L its un-needed if your swapping for power reasons, you can have it turned off in the tune. And for the VVT delete you need what i listed above or swap the front cover, timing chain, dampner and sprocket from your 5.3L if it is non VVT!
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Old Jun 19, 2012 | 10:01 PM
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On my 5.3 lmg I dont have vvt and on the 6.2 l9h I do have vvt can I just switch the stuff you listed above from one to the other and it work?

Last edited by Prahaian; Jun 20, 2012 at 08:49 AM. Reason: Found answer
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Old Feb 8, 2014 | 12:04 AM
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Default Help.

Your 6.2 should have 2 connections up front, one for VVT and the other is the cam position sensor, the connector on the back of your other engine is for DOD (displacement on demand) if you do a VVT delete on the 6.2l it will be a complete drop in swap! You will need:

-non VVT 4x cam sproket (06 and up vette ls2/ls3)
-LS2 chain and dampner/tensioner
-non VVT front cover or LS2 style front cover

OR you can just swap the non VVT parts over from your 5.3, You will have to have the DOD that your old 5.3l had turned off in the tune once you get the 6.2 up and running!
Very Help Full ! just what i need it to read and know... lol but here is the twist in my case.. lol

I have a 2007 (new body style) Sierra 5.3L (Either LMG or LC9) with tune, ported heads, valves and springs. My friend has a 2007 Denali/Yukon 6.2L (L92) Stock. here is were it gets tricky. he is willing to exchange engine for engine, he gets my moded egine with all the goods and i get a stock 6.2L. My truck could get the 6.2L just by changing all the parts of my 5.3L to the 6.2L to delet VVT, but can his Denali/Yukon get my non VVT 5.3L? and if yes how. and if no... absolutely there is no way then let me know so i can burst my bubble... lol

https://www.performancetrucks.net/fo...e-work-526439/

Last edited by SIERRASPEED; Feb 9, 2014 at 02:21 AM.
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Old Feb 8, 2014 | 01:01 AM
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Yeah just don't plug in the vvt sensor on the Yukon my truck was originally vvt but now with the lsx I don't run it no problems or anything just tune it out. This swap is really very easy and straight forward.
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Old Feb 8, 2014 | 08:57 AM
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Originally Posted by Three6GMC
Yeah just don't plug in the vvt sensor on the Yukon my truck was originally vvt but now with the lsx I don't run it no problems or anything just tune it out. This swap is really very easy and straight forward.
Nice Thanks a bunch!

Full Story:
https://www.performancetrucks.net/fo...e-work-526439/

Last edited by SIERRASPEED; Feb 9, 2014 at 02:16 AM.
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Old Mar 23, 2014 | 07:36 PM
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Default bit of a problem with cam sproket

well im swapping all the none VVT parts (5.3L) to the 6.2L (to do a VVT delete)
i know is no problem as longs as its on time but my timing marks align with the original VVT sprocket but as soon as i witch the cam sprocket to the none VVT the marks dont align, no problem as longs as it on time but i want to see if any had this problem and i really want the marks to align for reference later on... any suggestions or im doing something wrong.
I uploaded photos first 2 set is on time with vvt and marks aligned second set of pics is on time but with the none vvt sprocket. . Is on time Noting moved but yet is off on the reference marks.. or timing marks.

I have the marks alight to each other and piston #1 in compression.
Attached Thumbnails 2009 silverado 5.3 to 6.2 engine swap HELP!-20140322_185643_resized.jpg   2009 silverado 5.3 to 6.2 engine swap HELP!-20140322_185710_resized.jpg   2009 silverado 5.3 to 6.2 engine swap HELP!-20140322_190118_resized.jpg   2009 silverado 5.3 to 6.2 engine swap HELP!-20140322_190133_resized.jpg  

Last edited by SIERRASPEED; Mar 24, 2014 at 06:16 PM.
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Old Mar 25, 2014 | 01:49 PM
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Your off a tooth on the new install. Remove and rotate gear one tooth and chain and retry
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