How big of a cam can i go with in a 4.8 before i have to change springs rods ext...Thanks

 

Stock springs give out around .500" lift. Most stock rods are okay but, get the 5/16" 7.4" TFS ones for ~$80 and you're set.

 

IF I GET NEW RODS SHOULD I GET NEW ROCKERS AS WELL OR WILL THE STOCKERS WORK.

 

Stock rockers are fine. This isn't your typical sbc your dealing with here. They are roller and they torque down. No adjusting necessary. I would invest in the p rods as its cheap insurance. A 00 Z28 cam would work fine as it has 500 lift.

 

SO IF I GO FOR NEW SPRINGS,RODS THEN I CAN PUT A HEALTHY CAM[OVER 500]IN THE TRUCK,USE THE STOCK ROLLERS.TIGHTIN THEM DOWN GET SOME TUNING AND THATS IT.I AM USE TO ALL THE OLD SCHOOL STUFF SO THIS STUFF IS NEW.THANKS

 

Yes, that's correct other wise you will have valve float and the potential to bend a pushrod.

 

Sweet Thanks For The Helpful Info.