5.3 LM7 & 5.3 LS4

Printable Version

Monte Carlo Forum >> General Monte Carlo Forums >> General Tech >> 5.3 LM7 & 5.3 LS4

Page: [1]

Login Message << Older Topic   Newer Topic >>

5.3 LM7 & 5.3 LS4 - 9/22/2008 7:01:05 PM    bahdeets   Posts: 12 Joined: 8/17/2008 Status: offline Can anyone tell me the difference between what I have in my 2007 SS the LS4 5.3 liter and the 5.3 LM7 truck motor.  Are they dimensionally the same?  If not how are they different?  And after perusing this forum for sometime I haven''t found any leads on performance upgrades for the 5.3 LS4 besides the usual bolt ons.  Can anyone lead me to available superchargers, head, camshaft and other modifications, etc?  Who does performance work on these 2007 SS 5.3 Monte''s?   I saw the post on the Canadian Turbo - I was not impressed from the feedback I read.  I am in Michigan but anywhere would be fine, a car can be shipped cross country pretty cheap.  Thank you  Post #: 1

RE: 5.3 LM7 & 5.3 LS4 - 9/23/2008 7:12:50 AM    88ss408 Posts: 391 Joined: 7/9/2006 Status: online well the truck block should be iron and the SS block like all LS engines should be aluminum and the LS4 is a special FWD block and it is about 1 inch shorter then all other LS series motor''s but heads are the same so any aftermarket head will fit the motor the intake is different because of the D.O.D feature but if deleted you can put any intake you want the cam will have be a regrind because of it being shorter not sure on headers idk if anybody makes them for the 06-07 SS yet ? _____________________________ 88 ss 408sbc 547hp@6000 539tq@4300 all motor th350 trans 3.73:1 limited slip (in reply to bahdeets) Post #: 2

RE: 5.3 LM7 & 5.3 LS4 - 9/23/2008 10:23:26 AM    06MonteSS Posts: 299 Joined: 11/9/2005 Status: offline there are no superchargers for our cars...  there is a CarTek turbo setup, but it''s about $6,000 - but not worth that much money it IMO... there are no headers for our cars... go over to the ls1tech LS4 forum, there''s a LOT more info over there for our cars, and a guy is doing a cam swap now, has a post up with pics and info as well... http://ls1tech.com/forums/forumdisplay.php?f=108 _____________________________ 2006 Monte Carlo SS Loaded, CAI, Diablosport Tuned, >> PICS << (in reply to 88ss408) Post #: 3

RE: 5.3 LM7 & 5.3 LS4 - 9/23/2008 11:52:24 AM    88ss408 Posts: 391 Joined: 7/9/2006 Status: online any LS series supercharger will fit but it probly not fit under the hood _____________________________ 88 ss 408sbc 547hp@6000 539tq@4300 all motor th350 trans 3.73:1 limited slip (in reply to 06MonteSS) Post #: 4

RE: 5.3 LM7 & 5.3 LS4 - 9/23/2008 4:06:07 PM    bahdeets   Posts: 12 Joined: 8/17/2008 Status: offline thanks guys.  (in reply to 88ss408) Post #: 5

Today's Posts
Most Active Topics
Make A Donation
Forum Rules & FAQ
RSS Feeds

Monte Carlo Prices

Monte Carlo
2006 Monte Carlo
Corvette Forums

Top 10 Posters
spacerider 7850 wiz kidd 4940 mickey 4813 rj 3832 04 intimidat 3797 solaraslayer 3795 taz 3142 cowboy6622 3139 montejass 2745 04montels 2352

New Vendors
AMSOIL - Performance Oil Technology