Comp Cams 6.0L Truck Cam
10-30-2015, 10:01 AM
#1
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Comp Cams 6.0L Truck Cam Has anyone run this cam from comp? G3 XFI266 HR15 (http://www.compcams.com/Company/CC/c...csid=1096&sb=2)
I have been thinking about running it in my 04 2500HD. Looks like it wouldn't kill the bottom end based off of its rpm range. I would want to keep the stock 317 heads and CR so I could continue to run 87 since its my daily driver and it already sucks fuel like a pig. Just looking to possibly get a little more power out of the motor for light towing.
Truck has just a tick over 150k miles, so I was thinking beehive valve springs, keep the stock lifters, trunnion upgrade on the rockers, new pushrods, and probably a new timing chain and oil pump. Possibly shorty headers. Would this be worth the work for the power I would gain? I know I am not going to get a ton more out of it keeping it lower compression and on 87 octane. Thoughts are appreciated.
I have been thinking about running it in my 04 2500HD. Looks like it wouldn't kill the bottom end based off of its rpm range. I would want to keep the stock 317 heads and CR so I could continue to run 87 since its my daily driver and it already sucks fuel like a pig. Just looking to possibly get a little more power out of the motor for light towing.
Truck has just a tick over 150k miles, so I was thinking beehive valve springs, keep the stock lifters, trunnion upgrade on the rockers, new pushrods, and probably a new timing chain and oil pump. Possibly shorty headers. Would this be worth the work for the power I would gain? I know I am not going to get a ton more out of it keeping it lower compression and on 87 octane. Thoughts are appreciated.
Last edited by lsfanatic; 11-15-2015 at 01:07 PM.
10-30-2015, 10:23 AM
#2
Looks like the Cam Motion stage 2 6.0 truck cam is almost the same thing. I would recommend it over the Comp due to superior cam core and better customer service. You will also get a Cam Dr report showing it is ground correctly.
It will work with a GM ls6 style spring which can be bought for about $60.
http://store.cammotion.com/60l-truck...-compression-2
I gained right at 40rwhp and 20rwtq from a Cam Motion drop in cam in my 5.3 with absolutely no adverse effects. It makes noticeable improvements from idle then really takes off ~2000rpm and runs hard to the new higher redline. I run mine out to 6,000rpm max, peak hp was around 5800 if I remember correctly.
Mine was tuned for 89 octane prior to the cam and I kept it on 89 after but you could just as easily keep yours on 87 if you want.
It will work with a GM ls6 style spring which can be bought for about $60.
http://store.cammotion.com/60l-truck...-compression-2
I gained right at 40rwhp and 20rwtq from a Cam Motion drop in cam in my 5.3 with absolutely no adverse effects. It makes noticeable improvements from idle then really takes off ~2000rpm and runs hard to the new higher redline. I run mine out to 6,000rpm max, peak hp was around 5800 if I remember correctly.
Mine was tuned for 89 octane prior to the cam and I kept it on 89 after but you could just as easily keep yours on 87 if you want.
10-30-2015, 11:23 AM
#3
I also installed the Cam Motion Stage 2 6L cam in a customer's 2007 Sierra Classic 2500. The truck had a lifter wheel jamb up & flat spotted the cam lobe, since the heads had to come off, I milled them .020 & used a .040 Cometic head gasket. Also used LS2 valve springs & stock pushrods. Truck runs on 87 octane.
The idle just needed to be raised by 50 RPM, and idles very smooth. Just has a throatier exhaust sound (stock manifolds & muffler). But a very nice power gain that pulls easily to 6000 RPM. And of coarse zero valve train noise.
Russ Kemp
The idle just needed to be raised by 50 RPM, and idles very smooth. Just has a throatier exhaust sound (stock manifolds & muffler). But a very nice power gain that pulls easily to 6000 RPM. And of coarse zero valve train noise.
Russ Kemp
10-30-2015, 03:10 PM
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Thanks for the info guys. Sounds like it would be worth it. Not sure if I would want a little lope or note, probably want it just because lol. Would it be dumb to keep the stock oil pump and timing chain? I am thinking it would be but how long do they normally last?