I got a cam recommendation back from thunder racing the other day for my 383 LS1 build-up. Here is the specs:

1999 Chevy Silverado Ext. Cab
383 LS1(4.000" Eagle Crank/6.125" Scat I-Beams/undecided on Pistons)
5.3 Patriot Performance Heads (Stage 2)
3.90 Gears/Eaton
2600 Yank Converter/Beefed-up 4L60-E
Full Bolt-ons
Dyno-Tune

They said to stay on the smaller side since I occasionally tow and being my daily driver. They said to go with a 224/228-110 on a XER lobe. I was kinda wanting to go a little bit bigger than that. What do you ya'll think?

 

hehe, i called tr once for a cam recomendation for my 6.0 and they told me to not go bigger than a 216-220 525-532

def shop around and get other recomendations.

 

What cam are you running? How does it do?

 

99Silver and RGV...

Who gave you your cam recommendations from Thunder?

 

Geoff gave me mine. TR knows their stuff, I might actually get that cam. Just wanting other people's input.

 

Figured it was Geoff. However, RGV's doesn't sound like a Geoff pick. I don't know...


Here is another 383 dyno. Ported heads, custom 224/222-113 cam.
It's in a Vette.
Still, check out that torque curve and tell me if you didn't just cream your pants.


If your still using the Truck intake manifold, I betcha somethin like this would be a very good 'shot in the dark'.
-5500-5900 HP peak
-Strong torque curve

 

over 300tq all the way to 6500, nice..

and no it was not that person that recomended mine.

 

That torque curve is Crazy! I'm really starting to think about ordering that 224/228 cam. I'm not sure if I want it on a 110lsa though, seems there would be some drivability issues being in an automatic truck. Might go 112lsa. What do ya'll think?