We have some very knowledgeable people on this board

 

I don't know where you got your info, but I found these specs on LS1tech's website. I've also seen these specs in books and on other websites.

 

But the specs he's using are the advertised specs. Which are the general target specs for the production cam.
The ones you're quoting are actuall measured specs of 1 cam. Well we all know that there is a range of acceptable sizes from the factory. That's why there are differences in how the cars run. Some are extra hot, most are average, and some are extra slow.

 

I got those # from this board.

http://web.camaross.com/forums/showt...hlight=ls1+cam

And from the LS1.com board

http://www.ls1.com/forums/showthread...=ls1+cam+specs

this thread shows the Corvette LS1 cam to be near what you have indicated.

http://www.ls1.com/forums/showthread...=ls1+cam+specs

These numbers from LS1.com also

Stock cam information for the different years:

C5's
1997-00 LS1 C5 202/210; .472/.479; LSA: 117 Base circle: 19.7mm
2001-02 LS1 C5 198/208 ; .500/.500; LSA:115.5 Base circle: 19.7mm

2001 LS6 C5 Cam: 204/211; .525/.525 ;CL:118/114; LSA:116.0; Base Circle: 19.3mm (-0.0158")
2002 LS6 C5 Cam: 204/218; .551/.547; CL:120/115; LSA:117.5; Base Circle: 19.0mm (-0.0276")

Chevy Hot Cam 218/227; .525/.525; LSA: 112

F-bodies
98-00s had a 202/210 Dur @ .050, .496/.496 lift , 116 LSA or pretty close to those specs.
01-02s had a 198/197 Dur @ .050, .478/.478 lift, 115 LSA.

http://www.ls1.com/forums/showthread...=ls1+cam+specs

All pretty consistent with what I originally posted.
The joys of "search".

Hope this helps

LWM

 

I don't know if this is an accurate source or not, but I was just looking at SLP's page for 1.85:1 roller rockers, and they list the various cam lifts after installing the 1.85's, so I did the math to go back to stock:

'98 - '00:

.544" X 1.7 / 1.85 = .49989" (<-- round it to .500"? )

'01 - '02:

.521" X 1.7 / 1.85 = .47876" (<-- call it .479")

But who knows if they're being 100% specific about that, or if they're estimating/generalizing!?

 

As far as I know 97-00 C5 and 98-00 F-body had the same cam specs as well as the 01-02 C5's and F-body's.

Oh yeah, those cam specs I listed were ones from a guy who sent those stock cams in to comp cams and had them measured so I'm pretty sure they are accurate.

 

I went with a Comp 224/228 with a 581/589 lift 112 LSA I had to have a lot of PCM tunning. On the other hand my friend went with a bigger cam(more duration) and a 114 LSA and no tunning and his car drives fine I made about 45-48RWHP and40RWTQ from the cam. If I do it again I will go with a 114LSA!

 

whats the biggest cam that will pass California emissions? I imagine nothing to big Just wondering