Generation III Internal Engine 1997-2006 LS1 | LS6

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Jul 20, 2013 | 10:37 AM

#1

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From: Wilson n.c.

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Need input

Iron 370 vs aluminum 376.i no there's a weight difference but is there any hp or torque difference with same heads cr etc

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Jul 20, 2013 | 12:22 PM

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The 376 is a LS3? If you plan to boost it, go with the iron block. The LS3 might need a lot of extra work/parts if you plan on putting it into a gen III car.

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Jul 20, 2013 | 09:30 PM

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From: Wilson n.c.

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It's going in a foxbody with nos

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Jul 21, 2013 | 07:08 PM

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If you plan on a big shot, the iron block is stronger and will handle a power adder better. I would plan on forged pistons and ARP rod bolts at a minimum.

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Jul 21, 2013 | 07:38 PM

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The LS3 has more bore so I would imagine that's worth at least a few ponies plus it's aluminum so you'll be lighter as well.

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Jul 21, 2013 | 10:40 PM

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Give me an aluminum block any day...I've never heard of anyone damaging an aluminum block unless you're trying to run a TON of boost

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