What would it take to spin a 5.3 at 7000 rpms?
Jan 13, 2004 | 12:44 PM
#1
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From: Armpit of East TX
What would it take to spin a 5.3 at 7000 rpms?
I'm looking at getting a used cam. I think it will want to spin up to 6500 or a little more, 7k for safe measures. Considering that the 5.3 has the same crank and rods as a 5.7, which spins to 6500-6700 stock, then I would think a 5.3 would do the same safely. What do ya'll think?
Jan 13, 2004 | 02:37 PM
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From: Armpit of East TX
Originally Posted by BlownChevy
Correct me if I am wrong, but I dont think the stock intake manifold will be any good at those RPM's.
Jan 13, 2004 | 02:40 PM
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Originally Posted by Flyer
LMAO ...
I'm thinking maybe I should pick up a set of rod bolts, that should at least help it stay together.
I'm thinking maybe I should pick up a set of rod bolts, that should at least help it stay together.
I just dont thing the motor will last long running those RPM's. I did check and the stock manifold is in efficient @ those RPM's
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Jan 13, 2004 | 02:58 PM
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Originally Posted by Flyer
I'm looking at getting a used cam. I think it will want to spin up to 6500 or a little more, 7k for safe measures. Considering that the 5.3 has the same crank and rods as a 5.7, which spins to 6500-6700 stock, then I would think a 5.3 would do the same safely. What do ya'll think?
ARP rod bolts
Hardened pushrods
Springs
Ti Retainers
With that, I'd push those stock rods to 7000rpm without thinkin twice. BUT I wouldn't want a cam that would have a powerband like that in a truck...
Jan 13, 2004 | 03:10 PM
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From: Azle/Saginaw, Tx
i don't think the rods will be a problem really....car guys spin their stock rod motors that high frequently with no issues. just don't try to spray on top of it or anything. if i had edit i would be pushin mine to close to 6400 probably just to get the most out of my cam. but going towards 7k doesn't fuel begin to be an issue?