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LS Block Casting Number

This is a discussion on LS Block Casting Number within the General Help forums, part of the LSx Technical Help Section category; While my 1998 Z28 was up on the lift today, I checked out the casting number. I always thought they ...

  1. #1
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    1998 Camaro Z28

    LS Block Casting Number

    While my 1998 Z28 was up on the lift today, I checked out the casting number. I always thought they were always 8 digit numbers, but I read the following:

    115129974

    Can this be right or do I need glasses? Is this a 98 LS1?

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    515 HP TrickFlow Package BADASS2000SS's Avatar
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    440 RWHP / 410 TQ
    2000 SLP CAMARO SS

    Were you on the lift an Dannys Great Bear Automotive?
    2000 SLP Camaro SS M6 * 515 HP TrickFlow Package * FAST 92 MM Intake * Nick Williams 92 MM TB * Volant CAI * Granatelli MAF * Full Custom True Dual Exhaust with X-Pipe * Tuned by Breathless Performance

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    1998 Camaro Z28

    No, Automotive Accessory & Repair in Pembroke Pines getting FAST 92 manifold, throttle body, and SLP lt headers. The reason I asked about the casting # is because I broke the original LS1 years ago and paid to have it replaced with a cammed up LS6. Now that I know a little more about these engines I think I might have gotten effed and instead got my repaired LS1 back...

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    Quote Originally Posted by sewer rat View Post
    The reason I asked about the casting # is because I broke the original LS1 years ago and paid to have it replaced with a cammed up LS6. Now that I know a little more about these engines I think I might have gotten effed and instead got my repaired LS1 back...

    I found this...

    Quote Originally Posted by Y2KPewterSS View Post
    The only way to determine if you have an LS6 block in your fbody is to do the following:

    Look for 12561168 part number for the LS6 block found behind the Driver side head ( will need a mirror and some good angles to see, easiest when the head is off).

    There is no RPO code to signify that you have an LS6 block in your fbody.
    At this location http://www.ls1.com/forums/newreply.p...eply&p=1854382

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    Thanks. Got it figured out - 1998 LS1.

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    515 HP TrickFlow Package BADASS2000SS's Avatar
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    440 RWHP / 410 TQ
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    Quote Originally Posted by sewer rat View Post
    Thanks. Got it figured out - 1998 LS1.
    So you got screwed? You paid for a LS6 and got a LS1?

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    Yup. Shop's sold and owner/mechanic died years ago so I guess I won't be taking it up with him. Engine is still strong (354 rhwp before headers and intake manifold/thottle body), so I'll just have to move on...

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    That blows I hate sh*tbags that run their businesses like that it give mechanics a bad name. I guess I shouldn't speak ill of the dead though.

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