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Thread: Anyone going to try the LS7 motor?

  1. #1
    Wally_Gator
    The new LS7 motor has a factory 500 hp with a cam and retainer swap you could be putting out 600 hp... Out of an all aluminum small block...
    Kinda makes you think...

  2. #2
    flat broke
    The new LS7 motor has a factory 500 hp with a cam and retainer swap you could be putting out 600 hp... Out of an all aluminum small block...
    Kinda makes you think...
    Where does the power hit Wally? That will likely be the reason it wouldn't work as well as a properly thought out 600hp BBC.
    Chris

  3. #3
    Wally_Gator
    Where does the power hit Wally? That will likely be the reason it wouldn't work as well as a properly thought out 600hp BBC.
    Chris
    I got this from the Feb issue of Hot rod..
    RPM SAE-HP SAE Lb-FT
    ______________________________
    3,255 281 453
    3,647 321 462
    4,055 382 495
    4,451 430 508
    4,873 488 526
    5,245 525 526
    5,628 558 520
    6,019 584 509
    6,389 596 490
    6,803 600 563

  4. #4
    FuelInMyVeins82
    Ya the LS7 is awsome those 12 degree heads are key. Titanium rods would be nice aswell. Speaking of small blocks DNE just finished a 462 small block all aluminum that made 740 ponies single carb on pump gas thing is bitchen. It was dynoed w/ a full exhaust system including mufflers to. Would make an awsome jet boat motor and weighs under 500 lbs.

  5. #5
    Wally_Gator
    Not to mention hand assembled...

  6. #6
    SmokinLowriderSS
    The one posted from Hot Rod might manage to pull a Berk "A" to 5600 RPM - 554HP, pretty good. I do suspect the increased torque of it's big brother would wind it tighter tho, with what MAY be fewer reliability issues. Pushing the small block to that many cubes and those revs is maxing it out pretty good. The Big Block at those power levels is only really getting a good start.

  7. #7
    77charger
    sounds good but i dont think it will work out as well as a big block for the jet boats.You need to make a good amount of torque til the hp takes over.The ls7 will be working hard vs the big block just starting to work.

  8. #8
    FuelInMyVeins82
    Right but what about the power to weight ratio. I mean your average big block is what 7-8 hundred pounds and this problobly in the ball park of five at the most six. that a big advantage. Only thing that gets me is it price tag. You could build one hell of a motor for that price.

  9. #9
    UBFJ #454
    I know of a N/A AL BBC that makes on the order of 1,250+ Hp w/o n2o which weighs in just under 600 lbs..

  10. #10
    Wet Dream
    Right but what about the power to weight ratio. I mean your average big block is what 7-8 hundred pounds and this problobly in the ball park of five at the most six. that a big advantage. Only thing that gets me is it price tag. You could build one hell of a motor for that price.
    Big blocks come in at 650-660

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