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what valves do I need??

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Old Jan 20, 2023 | 07:26 PM
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Default what valves do I need??

I'm currently building another lq4 for boost and I'm at the point where I need to address my heads, more importantly my valves. last build I just swapped springs and got a refresh that's it.now id like to go further in this new build. I have a set of 823 heads from an ly6 that I'm going to use, only problem is one of the exhaust valves has melted a bit and is un usable, Id like to swap all valves to new. what valves should I use since I'm going turbo and looking to make at least 1000hp. would I need stronger intake valves as well?
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Old Jan 20, 2023 | 07:33 PM
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Originally Posted by Javi7808
I'm currently building another lq4 for boost and I'm at the point where I need to address my heads, more importantly my valves. last build I just swapped springs and got a refresh that's it.now id like to go further in this new build. I have a set of 823 heads from an ly6 that I'm going to use, only problem is one of the exhaust valves has melted a bit and is un usable, Id like to swap all valves to new. what valves should I use since I'm going turbo and looking to make at least 1000hp. would I need stronger intake valves as well?
High quality Manley stainless valves will be more durable for what you want to do.

Andrew
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Old Jan 20, 2023 | 08:04 PM
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Originally Posted by Project GatTagO
High quality Manley stainless valves will be more durable for what you want to do.

Andrew
do you have any links? I'm looking to hopefully order tonight
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Old Jan 23, 2023 | 05:17 PM
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The factory LY6 exhaust valves are Inconnel and pretty cheap new from Summit:
https://www.summitracing.com/parts/n...YaAmv2EALw_wcB

I did a similar thing for my LSA heads (has very heavy factory valves) and did LY6 exhaust valves with LS3 hollow intake valves for a 1000rwhp+ turbo setup. I've heard many people running this combo and not having any issues.
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Old Jan 23, 2023 | 06:02 PM
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I went with these for some reason and it did take some time tracking all the exhaust valves down.
109g
98g
Ferrea hollow stem intake valves are 19-20g heavier but also have thicker walls than LS3's so I decided to go with them. Manley's are another good choice for valves and if you can afford them then go titanium intake valves.

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