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TBI / Vortec Blocks....

This is a discussion on TBI / Vortec Blocks.... within the General Help forums, part of the LSx Technical Help Section category; My '96 1-ton has a rod thru the pan, I have a complete 91 TBI motor, If the block is ...

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    Bone it like you own it FORD RECOVERY EXPERT's Avatar
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    TBI / Vortec Blocks....

    My '96 1-ton has a rod thru the pan, I have a complete 91 TBI motor, If the block is machined to accept roller lifters, I can use the 91 shortblock, to fix the 1-ton...

    My Question is this: Where is the casting number??

    on the rear driver side of the block, behind head, adjacent to bell housing,
    Mine says:

    GM 5.7L G
    SG1

    But the casting no. isn't there....


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    Nobody?

    I am dissapoint.

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    Senior Member bigrondownhiller's Avatar
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    Most blocks after 87 should be machined for the roller setup. Look in the valley for the 4 bolt bosses that hold the lifter retainer spider.

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    ^^ I'm aware of that, Just didn't want to open a complete motor for no reason, the casting HAS to tell you if it is or isn't.

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