School me on BBC
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School me on BBC

  1. #1
    Stole it! BlubyU's Avatar
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    Default School me on BBC

    So.. here's the deal have a 454 in my boat now, thing has close to 500hours on it. Probably time to do something with it, it's tired. I ran across a deal on a rotating assembly for a 502 all Merc racing parts (Crank, Rods, Pistons)

    I am no expert when it comes to BBC bore size, crank and all... I don't think you can take a 454 to 502 cubic inch with a 4" stroke correct?
    Last edited by BlubyU; 12-15-2011 at 07:49 AM.
    2011 BOSS302R

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  3. #2
    Stole it! BlubyU's Avatar
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    Fasglas...

    Thanks that's the answer I was looking for. Search is on...
    2011 BOSS302R

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    I haven't kept up with the latest offerings from GM, but in the past the 454 block was a different block and would not bore big enough.

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    Some guy obnoxious001's Avatar
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    Quote Originally Posted by BlubyU View Post
    Fasglas...

    Thanks that's the answer I was looking for. Search is on...
    It's not possible to bore a regular GM 454 block to accept a 502 (4.470") piston into it. On top of that, the 502 assembly is probably for a late model block, which has a 1 piece rear main seal, so unless you had a late model 454 block, it's also not directly compatible. Both the 454 and 502 have 4" stroke cranks.

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    Senior Member wagspe208's Avatar
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    All you need to know is a big block is so yesterday. A LSX with efi is where its at. Especially if you want to spend a bunch of money and get less.
    HAHAHA
    Wags

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    Stole it! BlubyU's Avatar
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    Quote Originally Posted by wagspe208 View Post
    All you need to know is a big block is so yesterday. A LSX with efi is where its at. Especially if you want to spend a bunch of money and get less.
    HAHAHA
    Wags
    Wagspe208... I hear ya on the LSX with EFI. At this time it doesn't permit though. Thanks for the help.

    Ordered a brand new bare block.
    2011 BOSS302R

  8. #7
    Some guy obnoxious001's Avatar
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    Quote Originally Posted by BlubyU View Post
    Ordered a brand new bare block.
    Did you order one of those Pro Comp 502 blocks? If so, I will be curious to know how that works out.

  9. #8
    Stole it! BlubyU's Avatar
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    Quote Originally Posted by obnoxious001 View Post
    Did you order one of those Pro Comp 502 blocks? If so, I will be curious to know how that works out.
    Negative... A brand new one from GM 1763$


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