Both are good trucks, the SS is a better truck IMHO. The L is more fun stock than the SS and its easier to mod. But the SS rides better, interior is better, AWD is a plus, much less road noise, XM Radio, OnStar, Climate Control, A Back Seat, and it looks BETTER..

 

so what kind of power you thinking it will make?

 

Ripped427 the pulley can be easily changed unlike the pulley on the Lightning the pulley on a Radix is keyed so changing it is easy.Magnuson pulleys normally have the size stamped on them.What size pulley are you running?I have found that a .2" smaller pulley gives 1 1/2 to 2lb more boost.

 

That is one good lookin truck

 

I am not sure if Ripped427 has changed his pulley or not, but the stock pulley on my SS (stock 6.0L) gets 7lbs boost on a cool morning. I am guessing he would have to change the pulley to help keep up with the deeper breathing 427.

But, until Ripped427 gets his 427 to the track, I still have the "fastest Silverado SS" bragging rights But once he does get it to the track, I will never see that title again

 

I may have to hook up the juice pretty quick and hit the track and see what mine will do.

 

Somebody needs to try, I have had the "title" far longer that I thought possible I guess the summer weather is keeping folks away from the track.

 

It's a 2.8 upper, stock lower & no boost gauge yet. I'm not real concerned about boost.

1st The Radix is a very well engineered package, better engineered(for installation) than whipple or ATI (just my opinion) And I don't want a race car/truck I can drive daily. I wanted a daily driver I can race. So for now I'm sticking with Radix.

2nd Might be a little room for a larger lower, but blower speed is getting up there @ 6000rpm

3rd My guess on boost... between 5 & 6 mabey a little less.