soldadoblanco Posted July 17, 2011 Report Share Posted July 17, 2011 CAN ANYONE TELL ME THE DIFFERENCES BETWEEN LQ9 & LQ4 ENGINES I KNOW THE LQ9 CAME IN SS. LOOKING TO DO AN ENGINE SWAP ON MY TWO DOOR REGULAR CAB I HAVE A 4.8 WANT TO UPGRADE TO A 6.0...AT MY LOCAL SHOP THEY HAVE LQ4'S N LQ9'S AND A DIFFERENCE OF A ABOUT $200-$300 FOR THE LQ9 Quote Link to comment Share on other sites More sharing options...
bruiser04 Posted July 17, 2011 Report Share Posted July 17, 2011 i believe lq9 has higher compression and flat top pistons not totally sure on that im sure someone will chime in that knows more on this topic Quote Link to comment Share on other sites More sharing options...
chris B Posted July 17, 2011 Report Share Posted July 17, 2011 Quote Link to comment Share on other sites More sharing options...
1BAD2K Posted July 17, 2011 Report Share Posted July 17, 2011 i believe lq9 has higher compression and flat top pistons not totally sure on that im sure someone will chime in that knows more on this topic correct LQ9=10.1:1 and LQ4=9.2:1 and about 20 hp less than the LQ9. Both should have the 317 Jcasting number) heads.....fyi Quote Link to comment Share on other sites More sharing options...
Fireman31 Posted July 17, 2011 Report Share Posted July 17, 2011 LQ9 has flat top pistons, LQ4 has dished pistons.... Quote Link to comment Share on other sites More sharing options...
soldadoblanco Posted July 17, 2011 Author Report Share Posted July 17, 2011 so if i was to get an LQ4 I CAN MAKE IT AN LQ9 BY SWAPPING PISTONS?? OR IS THERE MORE DIFFERENCES BETWEEN THEM OTHER THAN PISTONS AND COMPRESSION RATIO? THE BLOCK AND ALL ACCESORIES ARE THE SAME RIGT? THANKS FOR THE FEED BACK Quote Link to comment Share on other sites More sharing options...
Sik-rod-yo Posted July 17, 2011 Report Share Posted July 17, 2011 so if i was to get an LQ4 I CAN MAKE IT AN LQ9 BY SWAPPING PISTONS?? OR IS THERE MORE DIFFERENCES BETWEEN THEM OTHER THAN PISTONS AND COMPRESSION RATIO? THE BLOCK AND ALL ACCESORIES ARE THE SAME RIGT? THANKS FOR THE FEED BACK If ur going thru all that trouble why not build it instead,IMO . All the accessories are ther same Quote Link to comment Share on other sites More sharing options...
soldadoblanco Posted July 17, 2011 Author Report Share Posted July 17, 2011 If ur going thru all that trouble why not build it instead,IMO . All the accessories are ther same YEA THATS WHAT I WANT TO DO...REGARDLESS IF I WERE TO GET AN LQ9 OR LQ4 I WOULD WANNA REBUILD IT AND MAKE IT NICE AND STOUT...BUT I FIGURE IF EVERYTHING IS THE SAME EXCEPT SOME ACCESORRIES, PISTONS ,ETC THEN I WHY WOULDNT I JUST PICK UP AN LQ4 THATS ABOUT $300 CHEAPER AND JUST BUILD IT UP?? Quote Link to comment Share on other sites More sharing options...
kcsilveradoss Posted July 17, 2011 Report Share Posted July 17, 2011 about 5 Quote Link to comment Share on other sites More sharing options...
Sik-rod-yo Posted July 17, 2011 Report Share Posted July 17, 2011 YEA THATS WHAT I WANT TO DO...REGARDLESS IF I WERE TO GET AN LQ9 OR LQ4 I WOULD WANNA REBUILD IT AND MAKE IT NICE AND STOUT...BUT I FIGURE IF EVERYTHING IS THE SAME EXCEPT SOME ACCESORRIES, PISTONS ,ETC THEN I WHY WOULDNT I JUST PICK UP AN LQ4 THATS ABOUT $300 CHEAPER AND JUST BUILD IT UP?? What do u mean by accessories , what I consider accessories is alt, steering wheel pump, Ac condenser ect Quote Link to comment Share on other sites More sharing options...
juriha Posted July 17, 2011 Report Share Posted July 17, 2011 Take off the damnnnn caps lock. Quote Link to comment Share on other sites More sharing options...
Sik-rod-yo Posted July 17, 2011 Report Share Posted July 17, 2011 Take off the damnnnn caps lock. Lol Quote Link to comment Share on other sites More sharing options...
soldadoblanco Posted July 17, 2011 Author Report Share Posted July 17, 2011 (edited) What do u mean by accessories , what I consider accessories is alt, steering wheel pump, Ac condenser ect yea exactly you got the idea. i wanna swap a 6.0 into my 2door for my 4.8 v8 and im unsure of how i need to go about doing that. i figure if the lq4 and lq9 blocks are the same then i can get an lq4 an be able to build it up just like you would with an lq9 Edited July 17, 2011 by 2drchevyss (see edit history) Quote Link to comment Share on other sites More sharing options...
Sik-rod-yo Posted July 17, 2011 Report Share Posted July 17, 2011 It should only take u a couple of hrs with the right tools and motivation, oh yeah don't forget about the beers and and some good tunes. Every thing is plug and play except u will need a tune . Since ur I'n la hit up chpspecial here on the forum many of use can vouch for him Quote Link to comment Share on other sites More sharing options...
soldadoblanco Posted July 18, 2011 Author Report Share Posted July 18, 2011 It should only take u a couple of hrs with the right tools and motivation, oh yeah don't forget about the beers and and some good tunes. Every thing is plug and play except u will need a tune . Since ur I'n la hit up chpspecial here on the forum many of use can vouch for him all harness n engine sensors are plug n play?? Quote Link to comment Share on other sites More sharing options...
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