stock bottom end 5.3 safe max shift rpm's

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03-11-2010, 10:14 PM
Duct_tape123

Got any sound clips of that cam? I'm interested in the same one and would like to hear what it sounds like. Hows the bottom end power with that cam?
03-14-2010, 12:26 PM
Beatdown Z

Quote:

Originally Posted by 2007L33

Well my Yukon denali has a Lunati cam and when I have the snowmobile trailer on the back with 4 sleds. On the interstate with the cruise set at 70mph it will sit at 5700/5800 and not shift till I crest over the hill I am on and there are some long and steep hills when I travel thru the PA mountains. That engine actually spun a rods bearing with 42,000 on it ? I put the cam in at 13k ?

Damn! I don't think I could ever do that to any of my vehicles. I get nervous when my brother cruises at 3500 rpm in his 5.3 Chevelle. WTF!
03-14-2010, 12:30 PM
2007L33

Quote:

Originally Posted by Duct_tape123

Got any sound clips of that cam? I'm interested in the same one and would like to hear what it sounds like. Hows the bottom end power with that cam?

No clips yet, I ordered my nelson tune last week still waiting to hear from them that its done ? I will post some clips whens its done.
03-14-2010, 12:35 PM
Beatdown Z

I would spin the 5.3 in my brother's Chevelle to 7000 rpm, if the tune would allow it.
03-14-2010, 12:35 PM
bangbangskeetskeet

I shift my stock 5.3 at 6100rpm. Im pretty sure there is more rpm left in it also.
03-15-2010, 10:52 PM
gm327

6800 . . until it went boooom