'99 5.3L 15.5 with ls1 cam
#11
So is what Low said correct? Is the 00 cam updated already? Anyone know the lift of the 00 5.3? What years would be the best with fewer mods like springs? All that would be needed is a Crank Pulley bolt right if you do it without taking the valve cover gaskets off?
#13
Originally Posted by mudz5.3
So is what Low said correct? Is the 00 cam updated already? Anyone know the lift of the 00 5.3? What years would be the best with fewer mods like springs? All that would be needed is a Crank Pulley bolt right if you do it without taking the valve cover gaskets off?
Yes cam LSA changed in 00 from 99. That's it. Remember 99's are SEVERLY detuned from their 00+ counterparts. I'd lay money that the tuning gained most of the power changes between 99 and 00...
All the F-bod cams will be okay with stock springs too.
#14
Thread Starter
Performance Trucks Sponsor
iTrader: (5)
Joined: Jul 2002
Posts: 1,439
Likes: 0
From: san antonio, tx
you'll still have to remove the valve covers and loosen the rockers in order to change the cam.
I also recommend an oil pump if your're already in there and you have around 80K miles.
The 5.3 isn't cam isn't the same as the ls1, the ls1 has a higher lift.
later,
allen
I also recommend an oil pump if your're already in there and you have around 80K miles.
The 5.3 isn't cam isn't the same as the ls1, the ls1 has a higher lift.
later,
allen
#15
Thanks allen and hitman, yeah I would have realized that once I got into it, my mistake. I have done h&c's on cams and vettes before, just been awhile. Would the low end suffer much? Since my truck is a 4x4 I don't want to lose low end atleast till I get a converter. So what would be the best years or best cam in general with minor additions like springs. Just want the easiest hp boost I can get right now.
#16
Thread Starter
Performance Trucks Sponsor
iTrader: (5)
Joined: Jul 2002
Posts: 1,439
Likes: 0
From: san antonio, tx
Originally Posted by mudz5.3
Thanks allen and hitman, yeah I would have realized that once I got into it, my mistake. I have done h&c's on cams and vettes before, just been awhile. Would the low end suffer much? Since my truck is a 4x4 I don't want to lose low end atleast till I get a converter. So what would be the best years or best cam in general with minor additions like springs. Just want the easiest hp boost I can get right now.
Hitman seems like he's going with the '00 ls1 cam, so that'll be a nice comparison for you.
On the 5.3 we didn't feel any loss in lowend, it smoke the tires much better.
allen
#17
Originally Posted by mudz5.3
Thanks allen and hitman, yeah I would have realized that once I got into it, my mistake. I have done h&c's on cams and vettes before, just been awhile. Would the low end suffer much? Since my truck is a 4x4 I don't want to lose low end atleast till I get a converter. So what would be the best years or best cam in general with minor additions like springs. Just want the easiest hp boost I can get right now.
I got that other dyno sheet of the stock 4.8/5.3 on a dyno and the stock cam begins to drop what looks like to me is around 5200rpms...the F-bod cam pulls to about 5600rpms (then flattens out) in the 5.7 so in the 4.8/5.3 I can see it pulling to 6000rpms easily (cubes eat cams).
STOCK TRUCK CAM

STOCK F-Bod CAM
#18
Originally Posted by LAUST
What all PCM programming is involved in changing to a LS1 CAM? can you just do it with LS1Edit?


