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View Full Version : Help w/CAM choice for my 6.0 LQ4



levi_09
05-17-2012, 07:19 AM
Ok i know there are lots of writeups and information on this subject but i couldnt really find the answers i was looking for so hopefully someone can help out. I have a 2001 6.0 lq4 silverado 4x4 2500(non hd) So far i have pacesetter longtubes, E-cut out, dynomax muff, sprectre intake, BB tune. My next upgrade is going to be a cam. Im not looking to install a torque converter just yet. I know it really helps out but just not looking to do it at the moment. Down the road I may upgrade the heads and intake, thinking ls3 with the 90mm tb. As for the cam I want something that is going to work well with the heads I have now and also be a good choice if i decide to upgrade. I would like to keep a relatively low powerband, - under 6k - Any suggestions??? Is there a cam out there that exists for what im looking to do?? Have heard good thinks about the tr220 and tr224, but honestly im new to the whole cam thing...durations, lsa, lift, etc. Also I have stock heads right now. Will i need to change the springs, ive heard some cams are very easy on the springs and its not required. One more thing, I am going to retune via BB. I was thinking of the scancable tune. Is this an option after installing the cam? I know w/o the tune it will run bad but is it driveable until a retune? thanks

custm2500
05-17-2012, 07:48 AM
To install a cam and not a converter is foolish. A converter on your stock engine will make massive noticeable gains in stop light to stop light power and if you are looking for 1/4 mile times it will help tremendously there too. I would do a converter long before considering a cam.

If you are going to do it back wards you are in the right area. Performance truck.net there are plenty of cam experts and they can dial in what you are looking for.

As for getting it re-tuned after the cam you will want to do it as soon as possible. Weather it is drivable or not will depend on the cam you choose.

Springs will probably be OK with a smaller aftermarket cam also but it all depends again on what cam you choose. Nearly every cam in the range if not all of them will work with your stock springs.

P.S. Why are you willing to tear the engine all apart but not un bolt the trans and install a converter? A converter is a much easier job and usually costs less. Also like I said you will gain more from it.

levi_09
05-17-2012, 08:01 AM
thanks for the reply, i dont really want to do a converter right now because i tow from time to time and also i just finished up my exhaust. Not thinking i fully welded my headers to my Y pipe which is right under the transmission. I would like to install a converter but im not looking forward to cutting into my newly installed exhaust.

jmoore2006
05-17-2012, 09:17 AM
thanks for the reply, i dont really want to do a converter right now because i tow from time to time and also i just finished up my exhaust. Not thinking i fully welded my headers to my Y pipe which is right under the transmission. I would like to install a converter but im not looking forward to cutting into my newly installed exhaust.

cut and flange the exhaust and get a converter in. you will be much much happier with the end result. the cam is going to upset you because its not going to give you what your looking for in the seat. the converter will definetly give you a difference in the seat

custm2500
05-17-2012, 02:05 PM
100% the way to approach it. The cam will actualy feel slower probably due to the converter bogging it down.