LLY: Built Motor Delemia.......

ZR1160

ZR1160

TT Dmax Junkie
Jan 12, 2007
221
0
0
Eastern Canada
My truck already has MPI gen 1 twin turbos, Kerma 50hp injectors, ARP head studs, and a MITUSA lift pump. On my shelf I have a set of Carrillo rods, Spearco intercooler and a Flex-a-Lite fan. On route is a 68mm Cheetah.

My plan was to build my motor this past winter, but I've been building a new house and with so much cool stuff coming out I've been procrastinating on the build. But I can't put this off any longer, so I've decided to do a small build for now. I will be only running single modded LMM CP3 with addition of the Cheetah.
So, in the motor I think I should run at least 16:1 pistons, billet oil pump and a harmonic dampener.

Is there anything else I should consider? Remember I really only want about 750rwhp at the most. ( We will leave the big power for the next motor!)

Thanks, Steven.
 
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Ben46a

Ben46a

Wannabe puller
Sep 4, 2006
275
0
0
41
Waverley, NS, Canada
main studs/head studs, put your rods in. I would worry more about rods than pistons. If you dont want to use the carillos, Ill sell ya my crowers, Im going with another brand of rods that fit a cummins. In fact ive got a bunch of stuff you may be interested in ;)
 
codyn

codyn

Member
Aug 26, 2007
412
0
16
urbana ohio
if your not going with big power try a set of lmm pistions they have lower compression around 16:1. i was looking at the motor specs everything is the same from what i see but i think they changed the pistion compression.
 
ZR1160

ZR1160

TT Dmax Junkie
Jan 12, 2007
221
0
0
Eastern Canada
codyn said:
if your not going with big power try a set of lmm pistions they have lower compression around 16:1. i was looking at the motor specs everything is the same from what i see but i think they changed the pistion compression.
Click to expand...
But they are the same as the LBZ pistons.
 
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codyn

codyn

Member
Aug 26, 2007
412
0
16
urbana ohio
ZR1160 said:
But they are the same as the LBZ pistons.
Click to expand...

the compression on the lbz is higher than the lmm i had to go down to the dealership and had the print out of the 4 motors. me and the diesel mechanic think the pistions are a little different because of the compresion.
 
ripmf666

ripmf666

Active member
Sep 20, 2006
15,123
14
38
47
Wentzville Mo
they switched half way thru 04 I think its was 04.5 went down to the low comprission, I posted the other ones in the vin and tsb area for you.
 
ripmf666

ripmf666

Active member
Sep 20, 2006
15,123
14
38
47
Wentzville Mo
codyn said:
the compression on the lbz is higher than the lmm i had to go down to the dealership and had the print out of the 4 motors. me and the diesel mechanic think the pistions are a little different because of the compresion.
Click to expand...

Cody you were talking about LBZ and LMM pistons not LB7 and LLY's, Mid 04 is when the switched over.
 
ripmf666

ripmf666

Active member
Sep 20, 2006
15,123
14
38
47
Wentzville Mo
LOL I hope you dont think I was taking a jab at you,I was just helping out buddy, Now all the specs are listed for LB7-LMM and will have a nice home once Rob is done making it and Kat moves my posts over there.I will list anything anyone needs Tq specs I can get any info that the dealer tech gets and sometimes more if I dig deep enough into Gm web site. :hug:
 
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