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Hey guys. Looking for a near stock replacement for my 2000 Suburban 5.3. I found this engine on craigslist, He states it's a 5.3 Vortec? Why would it not fit in a 2000? You guys are the experts. What do you think. What ques. should I ask when I call? Thanks in advance. Tom
'99 chevy engine vortec 350
should be the same, and that looks like the 5.7...is that what yours has?
is yours the same body style?
It looked like a 5.7 but mines a 5.3.
then no it wont be a direct swap...i thought the 2000 tahoes were the 5.7 older style motors?
stick with a 5.3
How bout a 6.0? :)
that is a 5.7 cpi vortec not a 5.3 ls vortec motor. Its an older design than what you have so it will not work.
99 Suburbans are old body and have the old engine. You need the LS style engine.
Yep thats the old 1950's original "small block chevy" that been
around since the dawn of time.
You need a Gen-III Vortec.
Search for a "LM7" motor. That is the model number for the 5.3L
LR4 .... 4.8L
LM7 .... 5.3L
LQ4 ..... 6.0L
LQ9 ..... 6.0L
will all swap over pretty easy for you.
yeah it's an L31
im confused....i thought suburbans/tahoes didnt switch body styles/motors till 2001??
right. and the ad now says 350 on it????Quote:
Originally Posted by banker099
Have to be careful when naming body style changes with years.Quote:
Originally Posted by banker099
Remember you could buy a 2001 "Model" in mid to late 2000
Quote:
Originally Posted by banker099
Nope.
The pick-ups changed in 1999 although the GMT400 body (like Greg's or Ricky's) was available as late as 2000 (therefore as a 1999 or 2000) as a 2500. The utility waited to 2000 to change to the GMT800 body WITH EXCEPTION of the 2000 Tahoe Z71 which was a GMT400 body. This is confusing since they offered a Tahoe and Suburban Z71 in the 800 body later.
The major point is the LS engines were all in 800's and the SFI Vortecs were in the 400's.
Another fun fact is the 99-00 GMT800 2500's were all 6.0's and NOT HD's 'cause the HD option was made for the body raise to fit the Allison LCT1000....since the DMax and the 8100 didn't debut until 2001, neither did the Allison or the 2500HD. Another funny is the 99 GMT800 2500 6.0 had iron heads.
Have fun!