New Guy here, not sure if this is the right place to post this but:

I am looking for some cam info for towing. I have searched and searched but most of what I am finding is for a 5.3 1500�I have a 2005 2500hd 6.0 with 4:10 gears. I have talked with Texas Speed two different times and received two different recommendations for a cam. I am looking at either the 220r or the 212/218 high lift. This will be paired with the PRC Stage1 LS6 heads and supporting springs/rods. I also have an intake and headers.

Will the 220r work with my stock stall in the 4L80E (2500ish)? I was told the 220r would not lose any low end over the 212/218 and gain more mid range power.

 

Either cam will be fine with your stock stall...Both cams would also be a great upgrade in that heavy *** truck. I would lean towards the 212/218 in your platform. I ran a 222/226 with stock 80e converter and had no problems.

 

Thanks, i see most people running a higher stall with this 220r cam have the 5.3 with the smaller tranny and lower stall. Im out in Denver and i pull a 5000lb camper up I-70 in the summer. Usually i just put her in 3rd and run the mountain, but i still cannot seem to hold 65mph in 3rd at 3200rmp.

will the 220r make any more power or torque at 3-4k rpm range over the 212/218 high lift. If we are only talking a couple hp/tq then the 212/218 high lift will be the choice for me?

 

I would probably lean toward the 212/218, or a 216/220 rather than the 220/220. The LS6 heads like a little bit of split in their cams where as the 5.3 has a smaller intake valve. I would think either one would be fine with a stock converter, but the 212/218 would definitely offer more off the line 'pop'

 

I'm running a 224/228 cam in my 6.3 stroker motor on the stock 4l80e stall, 4.10 gears, 33" tires. Its got plenty of getup for a truck this heavy. I'm probably at an advantage with the stroker crank, but with stock size tires and a 220 cam, it should work really well. I would run it.

 

Any numbers or dynos floating around that would put those cams in comparison? I'm afraid of going with the 212/218 high lift then regretting I didn't do a little bigger like the 220r or 216/220 as mentioned by vortec350ss.

 

Another camshaft worth consideration considering the application would be the Vinci � 280 �Street Torker�. While it is listed as having a choppy idle, I would say noticeable idle or at least not what most of us on PT would consider �choppy�.

The spec�s are as follows:
Vinci � 280 �Street Torker�
Camshaft Duration @ 0.050�: 212� intake / 222� exhaust
Valve Lift (in): 0.551� intake / 0.551� exhaust
LSA 115�
Description:
Good Fuel Economy, Street Performance, Power Range 1700 to 6000, Tuning Required, Choppy Idle

 

I have looked at the cams on the VHP site and that one did catch my eye. I understand the basics of single duration vs split duration cam profiles. From what I gather is that a single duration 220/220 works best with a very free flowing intake and exhaust while a split duration like the 212/222 works best with stock to mild exhaust.

I do plan to run the ported LS6 heads into my shorty headers, but I need the cats for emissions. Not sure if this would be considered free flowing enough to run the single duration cam that i originally wanted. The stock exhaust is dual 3" to the muffler, then a 4" out. Not sure I would change the factory exhaust since I tow and a manga flow or Gibson would probably be loud under load.

Would the split duration "street torker" cam be better for this setup.I'll probably be at a little under 10.5 compression with those heads.