What is the difference between lmg and lc9

I have a 5. Any idea which code motor I might have? And if I can use the intake? Sorry to ask but I keep banging my head up against 2 different codes for the 5. SM Vortec 5. In 4x4 models, this engine generates horsepower and lb. The composite intake manifold design allows the Vortec 5. Active Fuel Management? For consistently smooth shifts, the four-speed automatic transmission features an input speed sensor and Transmission Control Module that optimize shift quality based on driver input.

And Dexron VI transmission fluid helps provide long-term reliability and durability. We all started somewhere. OK, thanks for the help. But I guess I should have asked clearer or I missed it. Or am I totally missing the point. PM MCO Avalanche said:. You will want to install a trunnion kit for added reliability. In general, the LMG will see boost or nitrous before any serious head work. Before we get into the power adders, there are a couple things to address:. The LMG injectors were rated at 37 lbs.

Luckily, you have many options. The shorter 59 lb. Keep in mind, the best injectors are fully characterized which helps your tuner maximize idle quality, etc. When running boost, you can use a water-methanol system to supply extra fuel and lower charge air temps. The factory pump is good to about whp.

Many fuel system upgrade options are available. Drop-in fuel pump modules and external pumps are popular. Other options to maintain or increase pump pressure includes electronic voltage controllers and hotwire kits.

If you have a power adder, the intake and throttle body can take a backseat for a while longer. The factory truck-style manifold has long runners for better low-end torque.

Porting the intake is one option and a good value. You can slap your trusty carb on it and run a programmable ignition box that plugs right into the factory coil harness and cam sensor.

Truck engine bays also accommodate tunnel rams. These trade a little bit of torque down low for more up high—and nothing looks cooler. Ask your tuner about going with a Speed Density tune. Doing so removes the MAF restriction and will give you a bit more power.

A set of forged pistons should be high on your priority list. They have stronger wristpins, thicker ring lands, and the added valve reliefs allow you to run big cams.

There are exceptions, but Gen. They are likely to bend before they break when subjected to real track conditions. The LMG cranks were cast but strong. The main reason for going with a stroker forged crank is for the added cubic inches. The extra cubes bring boost on quicker which means you can use bigger turbos.

Performance rotating assemblies are available in many combinations. The blocks can be taken to 3. At that point, a set of head studs are a good idea. Information for this article originally appeared in this Upgrading the Gen. If you build a stroker LS engine, make sure the piston skirts are not going to go past the bottom of the cylinder bores at BDC.

Piston rock will hurt ring seal. My truck is suffering from the well known V4 lifter issues. My truck has kilometers and the LMG 5. Why spend a bunch of money tearing down my high mileage LC9 to replace lifters when for a few dollars more I can have this LMG one year younger installed.

Are there any parts that I need to buy or does everything bolt on the mounts and tranny with no issues? You should be in good shape. I have a 5. Pingback: LMG 5. Thank you, info is life but hard to get, thanks! Weight will be a big factor between the two. Also, as zzebes pointed out, Ethanol mixes are far more corrosive than unleaded fuel. Thus; lines, gaskets, ect. I did a 3 week study on E85 about a year ago, and I am not aware of any detriments from ordering a flex fuel engine vs.

If I had my choice, I'd get the aluminum with flex fuel, to save weight and keep my fuel options open. Are they scheduled for later production? Just as I expected, if you make the engine an FFV engine, it's no longer optimized. You lose 1 mpg in city driving, and maybe almost that much in highway driving.

These are from the official EPA ratings for 2wd trucks:. From another forum on Tahoes, it's been stated that the fuel filters now are part of the fuel pump which resides in the tank.

So to change the filter, you have to drop tank and replace pump and filter as a unit. Wow, that's like a big improvement! It will cut down on the fuel pump failures. I talked to a gm tech instructor at a local college my dad teaches at. He told me that the reason they did it was the fuel pumps were going out at an amazing rate due to the fuel filters catching "to much" of the little stuff. While the filters are in the tank they let more of the fine things by, less maintenance.

Again this is from what I consider a very good source, just some info. By Gorehamj Started October 16, By Gorehamj Started October 10, By Zane Started October 10, By Zane Started October 8, By Gorehamj Started October 7, By using this site, you agree to our Terms of Use.