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Thread: The LS Series Engines

  1. #11
    Registered Member chevynut's Avatar
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    As good as they are the most powerful LS engines still can't match a BBC when it comes to raw torque. The LS 376/525 engine only makes 478 ft lb at 5200 Rpm and I'll bet it's not a very flat torque curve with that big cam. Perhaps an LSX 454 could rival a big inch BBC but it's easy to get well over 600 ft lb with a BBC. Mine should make over 600 ft lb and it only has 9.6 to 1 compression and a pretty mild cam. There's no replacement for displacement ..... except supercharging ��
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  2. #12
    Registered Member 55 Rescue Dog's Avatar
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    The BBC isn't exactly new technology, since is hasn't been used in production for over 24 years ago with a injected carburetor. Surprised it's not been resurrected for the new C8.

    http://www.superchevy.com/how-to/ght...-440ci-na-lsx/
    Last edited by 55 Rescue Dog; 07-11-2017 at 04:32 PM.

  3. #13
    Registered Member BamaNomad's Avatar
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    Some folks have built out LS engines to OVER 427 ci... I suspect they have similar torque (but less mass)...?

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