Cammed 5.3l

[mtbennett24]

Anyone have a cammed 5.3l nnbs? Wondering if a cam mod is worth the $$$ and effort for a daily driver that does some boat towing too. Thanks!

 

[JennaBear]

All depends on the cam you go with. Also, you might want to match it up with a stall, then you are opening a whole new can of worms!

 

[mtbennett24]

Hey Jenna, I found this on the GMFS forum. Are they talking about your Tahoe? Are these cams that might not require a stall and could still give low end power? They are referencing an '04 Z71 with 5.3l.

Biggest I'd go in your truck without a stall is a 212/218 on a 112 or 114LSA. However, since you're in a heavier truck, it may not provide the bottom end grunt that you want. In that case, I'd run a grind like JustinSS recently installed in his lady's tahoe. Something along the lines of 206-208 intake duration and 212-216 exhaust duration. I wouldn't worry about running an extremely high lift. Also, as far as lobe separation angle, 114LSA would provide you with a broader powerband and it would have somewhat of a lope at idle. 112LSA will have a more defined powerband and the idle will be a bit more lopier. That aspect is left up to you.
Suggestions without upgrading converters:

the COMP Cams 54-408-11. Its a 206/212 .515"/.522" on a 112LSA

If you think you may ever upgrade converters, I'd go with the COMP Cams 54-412-11.

 

[JennaBear]

Yes, that would be mine. I didn't want to install a stall and I knew we would be running a blower. Was perfect with and withough F/I.

 

[mtbennett24]

What were the cam specs?

 

[JennaBear]

206/212 115lsa

 

[mtbennett24]

Thanks!

 

[mtbennett24]

Pardon the ignorance, but why wouldn't you want a stall with F/I?

 

[JennaBear]

I personally am not a fan. I wanted my DD to be easy driving.

 

[mtbennett24]

Got it. And the mild cam still gave noticeable results even without F/I? Thank you.

 

[JennaBear]

Oh yeah, changed my power curve.

 

[blueflamed03]

for cheap, you could always just add a TB stall, they go for like $150...

 

[SmallXL]

Anyone have a cammed 5.3l nnbs? Wondering if a cam mod is worth the $$$ and effort for a daily driver that does some boat towing too. Thanks!

a cam will typical move your torque curve. Taking some out of the bottom to put it on top (horsepower). Moving your curve up the RPM range isn't going to help towing. FI with a cam work work - $$$.

 

[shortntall]

nice

 

[Logan S Bull]

a cam will typical move your torque curve. Taking some out of the bottom to put it on top (horsepower). Moving your curve up the RPM range isn't going to help towing. FI with a cam work work - $$$.

I did a low lift truck cam 208 212 550 550 and a full rebuild of my lmg . For towing no sir it would really hurt it I think. However in the foot and seat power throughout the curve is more low end did loose some umpth over stock. Stak would help. Dyno read 330 at the wheels after 8k in parts. N/A IS NOT THE WAY. LOL

 

[blackelky]

Whats your gearing? That might make a bigger difference than a cam depending ok your ratio