Need some help with cam swap

[soultaker5.3l]

OK guys I have a 5.3l in 05 pick up I helped a buddy swap a cam into his 6.0l and he gave his old cam would it be beneficial for me to run the 6.0l cam or go to an aftermarket

[patriot]

Old cam? Will it even work? How many miles on it? OEM? If I were to go to all the work of swapping a cam, I'd surely go with a new one, and whatever other parts you may need to go with it.

[02suburbanZ71]

I second patriot. The 6.0 cam would help more with the low end torque but a compcam will help you more over 4K

[02suburbanZ71]

Dont forget pushrods and maybe springs depending on the cam max rpm or miles on engine

[soultaker5.3l]

It's an oem cam been in the truck since it was made there is little to no wear on it I work at a Chevy dealer and talked to one of the senior techs he recommended that I went back in with ls6 springs I was probably gonna swap some ls2 heads on it and of course do a all new lifters and pushrods

[Justinlw]

From what I've seen, the differences between a stock 6.0 and 5.3 cam are minimal. This would mean after a day of work, and a bunch of new parts, you wouldn't be gaining much at all.

 

My biggest complaint about my 5.3's is the lack of bottom end power, so I would go with something proven to bring more torque. Justin at Blackbear recommended a 206/212 112lsa, which I found from comp cams:

 

http://www.compcams.com/Company/CC/cam-specs/Details.aspx?csid=1084&sb=2

 

I've found a few reviews/Dynos with this cam installed, and everyone is very impressed with the results. No lope at idle, great low end, and slight gain up top with headers installed.