55superbeetle

iTrader: (5)

Did GM make a 5.3 or 4.8 with a 58x crank wheel and no DOD crap. Iron or aluminum? Were all gen IV truck motors aluminum? I'm thinking of selling my LQ4 in favor for a 5.3 but really want a 58x wheel as it will be easier with my stand alone. What's a LQ4 longblock worth these days?

bczee

iTrader: (12)

IIRC and read right.. the 5.3L Gen IV truck engine (2005 and up) came in two iron block versions (LY5 and LMG) and two aluminum block versions (LH6 and LC9). All versions feature the Active Fuel Management system. There could be others..

BC

chevellepowered

iTrader: (37)

yes i have one..genIv 5.3 its called the ly5 9.9 to 1 comp .. im currently running 19lbs on it 76mm turbo.. ***** and gets.. stock motor with cam and valve springs. its iron block.. im sure theres more out there. and its not hard to do a dod delete mine did not have dod.

55superbeetle

iTrader: (5)

So did all gen 4's have a 58x wheel? Chevellepowered, that's where I'm confused, everything I have read says all gen 4 5.3's had dod but I swear i have seen builds that didn't.....

chevellepowered

iTrader: (37)

yes all gen IV have a 58x wheel.. and a 4x cam . but that has nothing to do with it being dod or vvt ..and no not all genIV have dod..

Bo185

No 4.8L has ever had AFM (DOD) nor is there a Aluminum block (AL) 4.8L. Now all the 2010 up 4.8/5.3 now have VVT.

LH8,LH9, LMF don't have AFM and one is iron the other AL. LH8/9 are AL.

Actually the LY5 has AFM. http://archives.media.gm.com/us/powe...New/07_LY5.doc

Why not make the LQ4 58x you can buy all the stuff to do it. And build it. It doesn't have to be a Gen IV block to be Gen IV. You just mount the Gen IV knock sensors on side of block and you can make a cover for the rear cam sensor. But the Gen IV cam, timing cover and 4x cam wheel. Not really that hard.