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Old 06-04-2013, 06:36 AM   #1
Rdunn
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How much power/ factory block/forged internals

How much power will the factory block hold with forged internals?
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Old 06-04-2013, 06:50 AM   #2
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How much power will the factory block hold with forged internals?
We stop at 1000hp.
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Old 06-04-2013, 09:03 AM   #3
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We stop at 1000hp.
Andy, do you use a forged crank at the level? If so, how far do you push the stock crank?
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Old 06-04-2013, 09:25 AM   #4
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1000 crank or rwhp?
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Old 06-04-2013, 09:28 AM   #5
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I didn't want to go over 700 with 4 bolt heads, that's the real weak point on the LS3.
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Old 06-04-2013, 10:21 AM   #6
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I didn't want to go over 700 with 4 bolt heads, that's the real weak point on the LS3.

Do you mean 4 bolt main?
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Old 06-04-2013, 10:31 AM   #7
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Do you mean 4 bolt main?
No he means the heads. Stock ls3/l99 blocks and heads only have provisions for 4 bolts per cylinder, limiting their resistance to cylinder pressure.

I am using 6 bolt heads on my 4 bolt block because they have a thicker deck to resist lifting. I also bought them because I will be using a 6 bolt block on the next iteration.

I am over 1000 crank hp with my stock crank with forged rods and forged pistons as well. It is a centri setup and they are typically easier on parts.
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Old 06-04-2013, 10:42 AM   #8
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It's pretty amazing how much power the stock LS blocks are holding. The ARH/FARK Camaro made 1300 with a forged 416 and the stock LS3 block, but that really pushing it.
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Old 06-04-2013, 11:32 AM   #9
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Plenty of people make 1100+ on 4 bolt heads. Good gaskets, L19 1/2" studs work wonders. Plus a lot of shops like to keep 4 bolt heads as a fuse. If it pings it will take out a headgasket before a piston if you are lucky.
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Old 06-04-2013, 11:47 AM   #10
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You need at least 1000 RWHP for internet racing.
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Old 06-04-2013, 11:53 AM   #11
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Quote:
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Do you mean 4 bolt main?
We have 6 bolt mains
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Old 06-04-2013, 02:05 PM   #12
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You need at least 1000 RWHP for internet racing.
Is there a factor to convert internet hp to rear wheel, flywheel, or real world/no sh!t type power? Can you calibrate an internet dyno to reveal those other, less important numbers
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Old 06-04-2013, 02:46 PM   #13
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You need at least 1000 RWHP for internet racing.
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Old 06-04-2013, 04:04 PM   #14
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Seems like boost is the issue with lifting the heads.. The magic number is between 22-23 pounds before it starts trying to push water.
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