LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Stock Bottom ends.

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Old Jun 8, 2014 | 08:08 PM
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my94blackz's Avatar
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Default Stock Bottom ends.

How far has people pushed a sprayed stock bottom before they failed? I make 500 RWHP on a 150 with ported stock heads. Thats threw an auto. whats the normal breaking point HP wise of these engines?
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Old Jun 8, 2014 | 09:28 PM
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Is your stock bottom rebuilt? If so you're probably still in the safe zone ONLY IF your tune is good and your fuel supply holds up.
If still the factory build, you're on thin ice.
How high are you turning?
I'm 520 to the tires on the 100 shot through an 8" non-lockup converter, but that's on a competently rebuilt stock bottom. Turning 7000-7100 NA and 6800-6900 on the spray.
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Old Jun 8, 2014 | 09:30 PM
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HP doesn't break things. RPM and heavy pistons can make rod bolts wiggle, or detonation can crack a piston.

There are a couple guys making 420-430rwhp spraying 75-175ish one has a third gen f-body deep in the 9s that way, another posted above see his sig.

YOUR tuning ability has more to do with the longevity and how much you put thrhough it than the parts.
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Old Jun 9, 2014 | 06:20 PM
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It is a completly stock 60k bottom end. The tune is on point. Been on the dyno several times, with tons of tweaks. (buds with tick performance.) I keep the rpm under 6500, for the reason i know the more rpms these bottoms turn is skating. I make 377 threw a locked 4l60 on motor, then a 150 on top of that makes roughly 510. I got 7 degrees being pulled when i spray running 93 and a/f is 12:1
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Old Jun 10, 2014 | 05:21 PM
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Originally Posted by my94blackz
It is a completly stock 60k bottom end. The tune is on point. Been on the dyno several times, with tons of tweaks. (buds with tick performance.) I keep the rpm under 6500, for the reason i know the more rpms these bottoms turn is skating. I make 377 threw a locked 4l60 on motor, then a 150 on top of that makes roughly 510. I got 7 degrees being pulled when i spray running 93 and a/f is 12:1
Are you still running on the stock fuel pump?
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Old Jun 10, 2014 | 05:58 PM
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No there is a 255 in the tank
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Old Jun 13, 2014 | 12:35 PM
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Neighbor!!!
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