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MAXX rpm for stock 5.3??

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Old 01-16-2013, 11:32 AM
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ive taken mine to almost 8,000...

granted thats, cam, springs, lifters, pushrods, etc...
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Old 01-16-2013, 11:38 AM
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Anything over 6k with stock valve springs is flirting with disaster.
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Old 01-16-2013, 11:46 AM
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Anything over 6500rpm with Babbitt cam bearings is shortening the engine life. At 6500rpm the camshaft is doing 13,000rpm. Sure you can't get away with 7k rpm but for how long....
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Old 01-16-2013, 11:53 AM
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Originally Posted by TXSZ66AVLANCHE
Anything over 6500rpm with Babbitt cam bearings is shortening the engine life. At 6500rpm the camshaft is doing 13,000rpm. Sure you can't get away with 7k rpm but for how long....
The cam spins at half the speed of the crank.
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Old 01-16-2013, 12:39 PM
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Originally Posted by ferocity02
the cam spins at half the speed of the crank.
^^
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Old 01-16-2013, 12:43 PM
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Good job, seeing if yall paying attention
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Old 01-16-2013, 12:47 PM
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Lol good cover.

i put 30k on my truck shifting at 7300 and it died from a dead injector... as far as stock completely i went 13.6 in a reg cab shifting around 6100 if i recall.
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Old 01-16-2013, 01:03 PM
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Originally Posted by chevrolet all the way
Lol good cover.

i put 30k on my truck shifting at 7300 and it died from a dead injector... as far as stock completely i went 13.6 in a reg cab shifting around 6100 if i recall.
What cam were u running with the 7300 shift point?
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Old 01-16-2013, 01:40 PM
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Small. 220-224 530 534 112. it slowed down when shiften any lower on a 150 shot
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Old 01-17-2013, 12:20 PM
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Originally Posted by chevrolet all the way
...stock completely i went 13.6 in a reg cab shifting around 6100 if i recall.
I have to ask if there is video or slips for this?
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