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LS1 vs Iron block

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Old Dec 22, 2013 | 10:38 PM
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Default LS1 vs Iron block

I have a 2000 LS1 Camaro SS I want I build a 1000/1200hp Twin Turbo it is a 6 speed car. Trying to figure out if I should keep the LS1 or do I need to get a Iron block? And what rods and pistons are best ? Thanks for any input
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Old Dec 23, 2013 | 06:12 AM
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Iron no doubt. Wish I would have done that over the ls1. Alum can't take the boost like iron can.
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Old Dec 23, 2013 | 06:22 AM
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I've ran boththe only block that gave me problem was the aluminum block . For that kinda power your after iron 6.0 will be your ticket.
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Old Dec 23, 2013 | 06:43 AM
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Do a 5.3 iron block and bore it over to a 346. That's what I did so I could re use my rotating assembly from my ls1
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Old Dec 23, 2013 | 12:19 PM
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Thanks any input on what Rods Pistons are best sorry dont know much about building LS1's
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Old Dec 23, 2013 | 12:19 PM
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Thanks any input on what Rods Pistons are best sorry dont know much about building Iron blocks
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Old Dec 23, 2013 | 12:49 PM
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If you are going to use a 6.0 iron block this the route I would go.

http://aesracing.net/product_info_390LS1.htm

That motor uses a 3.900 stroke crank IIRC to get you a better piston in the bore for boost.
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Old Dec 23, 2013 | 07:09 PM
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Good to know going to be starting my 408 build soon
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Old Dec 23, 2013 | 07:09 PM
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what is the power cut off for ls1 block?
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Old Dec 23, 2013 | 07:36 PM
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1200 or so before it gets iffy. I've seen a couple of people run as much as 1500-2000 on the ls2 block.
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Old Dec 23, 2013 | 08:22 PM
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Most say iron and I'd agree if you're starting from scratch, or can sell your LS motor easy. However, there are also a ton of people running 1k hp on LS aluminum motors. If your LS doesn't sell I don't see why you shouldn't build it for what you want.

What will this be used for, drag racing? Daily driver? Weekend car? Just dyno numbers? All will depend on how hard the motor will be run and for what lengths of time.
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Old Dec 23, 2013 | 08:25 PM
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So then is 1000 and under good on a forged piston LS1 ? I am thinking that e85 is a must also.
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Old Dec 23, 2013 | 08:48 PM
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Im curious as well. I want to keep my LS1 and wonder how much I could get with a forged 347.
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Old Dec 26, 2013 | 02:51 PM
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I just want it for a Toy to take out sometimes and pick on some cars on high way
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