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New From San Antonio

kf95087

By kf95087
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kf95087 New Member

kf95087

Posted
Posted

WELCOME EVERONE. I OWN A 2009 CHEVY SILVERADO, 1500, LTZ, -6 INCH LIFT, 35 WHEELS, AND 4.56 GEARS. A MONTH AGO, THE 5.3 WAS SWAPPED-OUT FOR A 6.2L-NEW CRATE ENGINE. I KEPT THE VOLANT CAI AND MAGNAFLOW EXHAUST AND ADDED LONG TUBE PACESETTER HEADERS. THE 5.3'S ECM WAS COMPATIBLE WITH THE 6.2L. IN FACT, 5.3 ECM IS THE SAME PART NUMBER FOR THE 6.2L ECM. I'VE ENCOUNTERED A SNAG, IN WHICH THE VVT IS NOT WORKING. WITH THAT I AM TRYING TO FIGURE OUT HOW TO ACTIVATE THE VVT. TWO POSSIBILITIES COME TO MIND. THE 5.3 WIRING HARNESS NEEDS ADDITIONAL WIRING TO ACCOMODATE THE VVT OR THE ECM NEEDS TO BE REPROGRAMMED. ANY SUGGESTIONS WOULD BE APPRECIATED. I'LL POST PICTURES OF THE TRUCK WITHIN A WEEK. THE 6.2L RUNS GREAT.

 

KEITH

Jennabear Senior Enthusiast

Jennabear

Posted
Posted

You need to have the ECM programmed for the 6.2L as well as the 6.2L harness. Running it on the 5.3L programming is a bit unsafe.

chriscd254 Enthusiast

chriscd254

Posted
Posted

if u dont mind me asking,how much did that 6.2 run you? im also from san antonio,and i was looking into swapping my 5.3 for the 6.2 but wasnt sure if it was worth it for the most likely ,hefty price tag

NickS Enthusiast

NickS

Posted
Posted

Also, if you don't mind me asking, why would you waste that much time/money swapping out this in such a new truck (or was the 5.3 thrashed). Seems like a lot for a 2009 when you could have just bought a new one with the 6.2.

cliobogger Enthusiast

cliobogger

Posted
Posted

im currious on why you switched as well instead of buying a new truck. however i can appreciate what you did cause it sounds like a fun project. course with that money you coulda just supercharged/turboed the 5.3. haha. anywho, good luck and make sure to get the ecm re programed or you may do crazy damage to that brand new 6.2.

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