FWIW Gm uses 7.4 pushrods on the 234 heads with longer valves. I personally would run a longer pushrod if I'm not running the LS6 length valves but 7.4 if Using the long valve. I can see GM keeping things simple with 1 PR length and I do believe that they tested the LS6 extensively before releasing it for production.
Bob

 

I was also wondering what gains 02+ ls6 cam offers as one of my buddies is looking for a sleeper cam for his 5.3

 

I'm fixing to do this swap hopefully within the week. If all goes as planned I'll let you know my results.

 

Thats kool... Ive done plenty of searching and not many have listed any actual number gains. only thing i have heard is something like 20hp above 4k or so... and a slight decrease in low end compared to stock cam...

 

I can agree with that...that's about what my results were with a similar cam.

 

Oh I forgot to mention, i'll be stepping down from a 224/224 on 112 comp cam. I'm doing the swap in preparation for a turbo setup. I'll let you know on the power loss.

 

Are there any differance in the LS6 cams year wise, thanks Justin

 

I would imagine a decent loss from the 224 cam. Did you ever dyno with the 224?

 

from what i have searched yes. 01 ls6 cam is a 204/211-.525 lift with i wanna say a 116lsa and 02+ ls6 cam is 204/218 with like .550 lift and 117.5 lsa.. my numbers maybe off just a bit as im just pulling them from what i remeber.

 

Pretty close...

LS1 Camshaft Specifications

1998 - 2000 Fbody
202/210 int/exh @ 0.05" duration
0.496" / 0.496" int/exh lift
116 LSA

2001 - 2002 Fbody
197/207 int/exh @ 0.05" duration
0.467" / 0.479" int/exh lift
116 LSA

2001 LS6 cam
207/217 int/exh @ 0.05" duration
0.525" / 0.525" int/exh lift
116 LSA

2002+ LS6 cam
204/218 int/exh @ 0.05" duration
0.551" / 0.547" int/exh lift
117 LSA

GMPP Hot Cam
218/227 int/exh @ 0.05" duration
0.525" / 0.525" int/exh lift
112 LSA

GMPP ASA Cam
226/236 int/exh @ 0.05" duration
0.525" / 0.525" int/exh lift
110 LSA

6.0 LQ9
207/196 int/exh @ 0.05" duration
0.479" / 0.467" int/exh lift
116 LSA

5.3 LM7
190/191 int/exh @ 0.05" duration
0.466" / 0.457" int/exh lift
114 LSA

Rick