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raven265

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raven265 New Member

raven265

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hey i was wondering im gonna be rebuilding a motor for my 06 sierra 5.3l vortec now i found a 5.3 out of a 99 sierra now i was told they are swappable but my problem is will the computer have to be reprogrammed or will it be basic plug and play like im hopeing i was wondering if anyone can help me on this or if someone has any better ideas im open for new ideas the only reason i wasnt the 99 is cuz i found one for 500 running i cant find anything newer for anywhere near that price. thanks

Nytemare Senior Enthusiast

Nytemare

Posted
Posted
hey i was wondering im gonna be rebuilding a motor for my 06 sierra 5.3l vortec now i found a 5.3 out of a 99 sierra now i was told they are swappable but my problem is will the computer have to be reprogrammed or will it be basic plug and play like im hopeing i was wondering if anyone can help me on this or if someone has any better ideas im open for new ideas the only reason i wasnt the 99 is cuz i found one for 500 running i cant find anything newer for anywhere near that price. thanks

The basic block is the same design...But if you have an extended cab 4X4 than your engine is an L33..which has a much better flowing head design and aluminum block. It is rated at 310 hp over the previous versions at 295hp.

 

As for sensors...and PCM...they should all plug in the same...if not you should be able to swap the 06 sensors into the 99 block Same with the intake, I cant recall if the 06 has the drive by wire TB...but the 99 surly doesn't...so that would have to be swapped. The ignition blocks on the 06 engine are much better than the 99 versions...so you should use the 06 ones...BUT be sure to not mix and match....you cannot do that..they are different coils.

raven265 New Member

raven265

Posted
  • Author
Posted

ok that answers my question perfectly i figured i could just swap the sensors but wasnt sure if the 99 can handle them well thats good them if i can swap pieces right on thanks.

gmtech4 Senior Enthusiast

gmtech4

Posted
Posted

what Aiden means is (hi buddy)

 

strip the 99 down to a long block(block,guts ,heads)

 

put everything from the 06 to the 99 ,put it in the truck and drive it !

 

-30 degrees celcius in Alberta today OMG its cold

Nytemare Senior Enthusiast

Nytemare

Posted
Posted
what Aiden means is (hi buddy)

 

strip the 99 down to a long block(block,guts ,heads)

 

put everything from the 06 to the 99 ,put it in the truck and drive it !

 

-30 degrees celcius in Alberta today OMG its cold

Hey Rob....

Yeah thats exactly what I'm saying....everything on the 06 is a better design...and if you have an aluminum block 5.3L Don't even bother...rebuild the Alum block instead.

alwcurlz Enthusiast

alwcurlz

Posted
Posted
what Aiden means is (hi buddy)

 

strip the 99 down to a long block(block,guts ,heads)

 

put everything from the 06 to the 99 ,put it in the truck and drive it !

 

-30 degrees celcius in Alberta today OMG its cold

 

Hahah...I'm in the same boat Aiden.... -20F for tonight :)

Nytemare Senior Enthusiast

Nytemare

Posted
Posted
what Aiden means is (hi buddy)

 

strip the 99 down to a long block(block,guts ,heads)

 

put everything from the 06 to the 99 ,put it in the truck and drive it !

 

-30 degrees celcius in Alberta today OMG its cold

 

Hahah...I'm in the same boat Aiden.... -20F for tonight :)

 

Yeah...its cold I'm in Halifax Nova Scotia right now...opposite end of the country from where I live....its -8*C thats about 15F...I'm used to my 32-40*F winters now...this is really cold for me...but it will be -40* here in about a month....yeay...I cant wait.... :rant::lol:

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