the word "Marine" case into a block above the bellhousing flange - Page 2
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the word "Marine" case into a block above the bellhousing flange

  1. #15
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    All good infornation guys, thanks for the help. Sounds like someone will get a great block. This one is in the parts spam too, for 450.00. Magged/ and hot tanked. Needs about .030 bore.
    Thanks again, be safe. schick
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  3. #16
    gn7
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    Quote Originally Posted by steelcomp View Post
    I was working with a guy who had two Eickert tall deck 496's that had "marine" on the blocks. Had one sonic checked and there was nothing less than .300" on cyl walls. I believe this was as bob said, the predecessor to the Bowtie block.
    My understanding is, Merc Racing got GM to cast up some heavy wall blocks that they stroked to 496. Why they felt they needed the blocks to be thicker is anybody's guess. Some of them did however get bored to 4.44 and 4" cranks and made 496 as well, but they didn't need a tall deck to that.
    never heard of any getting both the 4.25 crank and a 4.44 bore, but I am sure it was done, just not raced.
    There are some rather rare pieces out there floating around , like GM, Winter's cast dual plane L88/LS6 type manifolds with cast in brass inserts in the front cross over that fit a tall deck, and longer cap screw "K" rods to fit the blocks with either cranks.
    I have one of the tall deck marine blocks, and its a stout piece. But it lacks things like blind head bolt holes that the later Mark IV Bow Ties had.



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    Last edited by gn7; 01-25-2014 at 08:33 PM.

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