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LS1 breaking point

This is a discussion on LS1 breaking point within the Firebird / WS6 forums, part of the Vehicle Specific category; does anyone know how much hp the ls1 block can handle? i know internals are good for roughly 500hp, but ...

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    LS1 breaking point

    does anyone know how much hp the ls1 block can handle? i know internals are good for roughly 500hp, but after those are replaced whats the limits of the block? any help would be great thanks

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    Quote Originally Posted by TwinTurboT/A View Post
    does anyone know how much hp the ls1 block can handle? i know internals are good for roughly 500hp, but after those are replaced whats the limits of the block? any help would be great thanks
    I recall reading in a post, that linked to a High Performance Pontiac or other magazine like that that said the aluminum block LS1 is good for up to 500 - 600 max. After that, you need to go to a cast iron 6.0l block and suggests dry sump oil pump. With that you can go to somewhere over 1400HP if you so desire.

    I'm going from memory, so I suggest doing some searching and you should find a link to that article somewhere on here.

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