Originally Posted by mean05
the 1999-2000 lq4 had a dif casting number. They werent 317 heads or aluminum. Werent they cast iron??
the 1999-2000 lq4 had a dif casting number. They werent 317 heads or aluminum. Werent they cast iron??
DANIEL CAMMED SS 13.46 @ 98.17-- 8.58 @ 80.31
2003 Silverado SS / LQ9 6.0L / Wheatley 93 Octane Tune / 224/228 .581 .588 110lsa / Patriot Gold Dual Springs / Comp Hardened Push Rods / Circle D 3800 stall / Pacesetter LT's / 4:10 Gears / Transgo HD-2 Shift Kit / K & N Cold Air Intake / Corvette Servo / Aeroforce Interceptor / Autometer Narrorband(Wideband on the way) / Mobile 1 Synthetic / Single Chamber Flows with X Pipe / Cats Delete with Cutouts
some of the LQ4s had cast iron heads and longer crank snouts that allowed the use of the old style flywheel, flexplate and transmissions.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
pistons and pushrods are diff. on the LQ motors. if they are 01+ then thats the only diff. 00 down would be iron headed... LQ9 comes out of escalades, denali's and ss's only...
The LQ9's have beefier rods in the earlier versions; later model LQ4's got the same rods as the LQ9. In the newer versions only the pistons are different.
Just a 4.8.......
I know you meant pistons and connecting rods
2006 GTO M6 Brazen Orange
2006 Silverado CCSB Duramax
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