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got me a 2500hd with an nv4500 5 speed, granted its not race truck, its a powerhouse that goes 25 mph in second gear. so.........im looking for a low end cam for an ls motor. the majority make power as the rpm;s go up, is there a company around that makes an off idle cam for a lsx? also does anybody on this site have experience with this type of cam in lsx.
think an ls6 cam is what you want, think thats what i have seen on here before.
you want FI and if you want grunt for now do gears. your truck makes plenty of lowend for what it is
Stay away from the LS6 cam - it bleeds off low RPM torque with its late intake valve closing. It's more intended as a high RPM cam in light-weight vehicles, like Vettes. With your 3-ton beast, you need a cam that closes the intake valve early (like the LQ4 cam), but has more duration and lift. I would recommend the following two cams. Either would boost low-RPM torque and rev to about 5500.
Comp XR259HR 206/212 .515/.522 112
Crane 1449531 208/216 .530/.530 113 (Grind# HR-208/312-2S-13.53)