im fixing to be installing a new cam and p&p heads on my truck. im still looking at what cam i want. i found one at sdpc2000 i liked but dont know much about cams. is anyone running this cam
sdpc2000 cam(n228)

 

I am not a cam guru, that seems like a pretty big cam for a 4.8, plus you will need atleast a 3000-3200 stall.... im pretty sure somebody else will chime in here soon...

 

Thats a VERY large cam for the 4.8. What are you looking for? They have a few guys on here running the TR220, or TR 224 in the 4.8's SSlow4.8 I believe and Thunder01? I have a similar (to the TR224) in my 6l. I like it, but think its too big for a 4.8. I had it ground when I had my 3000 stall, that flashed to about 3400, now I have a TB stall, and its not quite enough, so you would probably need at least a 3200 if you get the SDPC cam. Also, you can get any cam manufacturer to custom grind you a cam for teh same, or neer the same price. I used cam motion, Futral motorsports is also helpful. Good luck, let us know what you decide.

 

wow would that be fun in a 4.8L. i think even a 3200 might be a bit soft with that cam. shifting it around 6800 or so and using a converter around 3600-4000 would get the job done.

 

does anyone have some phone numbers i can call to talk to someone about a cam....cam motion, texas speedway.....

 

I know where you can get a good deal on a nice little cam for a 4.8. Noticable choppy idle yet plenty of low end tq. It worked great in my 4.8. It could be used with a stock converter but would perform best with a Trailblazer stall or a little more. It would require tuning to get it to idle properly.

https://www.performancetrucks.net/fo...d.php?t=357374

 

yea, i was looking at this cam. if you still have it next week when i get my tax return back i will buy it.. will i have to have the 918 springs and longer push rods?

 

Yep. Most all aftermarket cams you will have to have them. There are a few low duration/low lift cams you might get away with stock springs but I doubt you could with this one. The longer pushrod is needed due to the smaller base circle on the cam. They have to decrease the base circle in order to get more lift on the lobe. Otherwise, the lobe would be larger than the bearing journal and would not go in the engine. Stock cams are around .450" lift. LS6/z06 springs would probably work as well.

 

what do you know about polishing heads??? i plan on replacing my lifters during the cam install and thought about doing a little bit of porting and polishing...might even have a 5.3 bored 30 over going in if i can get it reasonable.

 

what do you know about polishing heads??? i plan on replacing my lifters during the cam install and thought about doing a little bit of porting and polishing....i know im not going to port alot, mainly just polish...might even have a 5.3 bored 30 over going in if i can get it reasonable.