LS1 Cam?

99ls1tj · Nov 20, 2012

I've got 2000 LS1 from a Camaro. Thinking about doing a cam swap to get a little more low end torque. Any suggestions for a good cam for a rock crawler? Thanks

Lickliter21 · Nov 21, 2012

I cut my 5.3 heads down .030 and put an ls1 cam in it. Made a world of difference. Really nice gain for cheap.
But if you call comp cams give them all the info they will set you up with the best cam.

fl-krawler · Nov 21, 2012

I put a comp cams hr273 in mine and I am very happy with it.. Laid down a solid 410hp with nothing more than tuning. Mild head mods, ported intake, and roller rockers got me to 475hp with ease

penn · Nov 21, 2012

http://bulletcams.com/ great folks to deal with

lay · Nov 22, 2012

fl-krawler said:
I put a comp cams hr273 in mine and I am very happy with it.. Laid down a solid 410hp with nothing more than tuning. Mild head mods, ported intake, and roller rockers got me to 475hp with ease

Specs on UR intake and head mods. And cam specs

fl-krawler · Nov 23, 2012

lay said:
Specs on UR intake and head mods. And cam specs

Sorry, listed the wrong cam.. I thought it was a 273, but its actually a xr275hr cam. Specs are in the link
http://www.compcams.com/Company/CC/cam-specs/Details.aspx?csid=1090&sb=2

I got the cam as part of a kit that included a preprogrammed Delpi MEFI ECM and harness. I added Comp beehive springs, and GMPP standard ratio roller rockers. Compression ratio was brought up to 11:1, and the intake/exhauset ports were port mached to the intake and the 1.75" primary headers that I built (midtube headers). If you search LS1 ported intake you should be able to find many threads on it. Basically you take a dremel and smooth the interior of the intake for better flow. My LS1 is an '02&up, so it already has the LS6 style intake on it (no egr right behind the throttle body). I am also running larger injectors but I don't remember the flow rating. The ecm was originally programmed for just the cam, so after all the mods were done, the jeep was taken and tuned on a dyno.

I really like this cam. It starts building power right off idle, and really pulls hard in the midrange to top end. Its got a nice lopey idle, but not so bad that it makes idling around with a manual trans a jerkey experience. I like it enough in fact that I am building a similar engine for my new buggy, although I am toiying with adding a supercharger in the mix

Here are the only videos I have of the jeep
http://youtu.be/uIIf9Cvlf5w
Mud hole