I have a 2000 chevy silverado 4.8 5 speed. What cam would you recamend for it?

 

Well sence you have the little engine and a stick shift I'd say the new one from Crane is what I'd use.

Crane Cams

 

I would go with the comp cams XR259HR 206/212 .515/.522 LSA 112, or maybe the XR265HR 212/218 .522/.529 LSA 114, it all depends on how much topend you want to gain and how much bottom end you are willing to lose. But comp cams do have quicker ramps than crane.

 

I am not so sure I would go with a set of 4.10's and cam it a bit heavy/ Get some headers mufflers and intake and cam it. I think a GM Hot Cam would be a good one for a 5 speed. It sure works good in REDPEPPERZ's 98 z28. Even before he put his 4.10s in, it still worked well

 

Yeah, that gear would help him outta the hole quite a bit. But I just think with the smaller displacement and no stall to help he should keep the duration down so he dosen't lose as much grunt. Unless he dosen't mind down shifting everytime he drives uphill on the highway.

 

true but a 5 speed he will be able to laugh at any rpm he wants. gears would help that because 1 st deeper than our autos. plus the 4.8 can be a whinding little dude. i dont think it would hurt as much as with a auto

 

Do you have to lose bottom end power when putting in a cam?
I've seen cams that are for 1500-5500 RPMs for example.
I would like to get a cam, but I want to take off like no other.
I also have the "little engine" but automatic.
Don't you have to change the valve springs when going higher than .500?
Plus you would need programming too?

 

From what I can tell almost everyone who goes much over 200 duration loses at lease some torque below 2500 rpm no matter what the companies advertise.

Personally my truck cruises at 1200-1500 rpm and I really don't want to lose all my torque in that range so I'm starting to think I'm just gonna get some 1.85:1 rocker arms and forget changing the cam. That way the duration will only change a fraction but the lift will jump way up.

As far as valve springs, The word on this site seems to be if your going over .500 change them but the tbyrne website says .525 so I still don't know which to believe yet.

And for Programming, It's always a win win to reprogram these trucks. There is a lot of hidden power to be had in these engines with a little tweaking. I think the cutoff for having to program though is around 212-214 duration on the intake side. You may have to drill out the throttle plate slightly if the LSA is on the low side though so it won't throw misfire codes on you.

 

I run the SLP 1.85 rockerarms you don't lose any lowend and they seem to gain 10-12hp at 2500rpm up.I have'nt found any downside but I shift at 5500-5800rpm.

 

I have the 212/218 .522/.529 114 Comp Cam in my truck. I definitely lost some low end grunt, but the thing pulls like crazy up top!

Nothing that a little convertor--or "torque in a bottle"-- won't cure!