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  1. #1
    Join Date
    Nov 2000
    Glastonbury, CT

    1998 & 1999 Mercruiser Models

    I know somebody will have this. What model and hp of the 454 block were available in 1998 and 1999.


    Its the little question like this that help when its 30 degrees outside, which is actual a heat wave compared to last week.

  2. #2
    Platinum Member Platinum Member SeaRay Jim's Avatar
    My Boats:
    SeaRay 240 Sundeck - 540cid
    Join Date
    Oct 2002
    DFW, Texas

    Re: 1998 & 1999 Mercruiser Models

    I'll take a stab and see how close I come. ON EDIT: Ok, I had to come back and correct myself!

    I had the years off by one. The 454 LXI was '96-'97 so it's out of the picture.

    1998 was the first years of the Vortec engines. In 1998-1999 there was the 454 Mag at 385 HP (rect port head and forged lower parts) and 7.4 MPI at 310 HP (large oval with truck MPI and cast lower parts. PS. want to buy what's left of my 7.4? )

    Last edited by SeaRay Jim; 02-01-2005 at 01:18 PM.

  3. #3
    Join Date
    Nov 2000
    Glastonbury, CT

    Re: 1998 & 1999 Mercruiser Models

    Thanks for the info any easy way to tell the difference ?
    Last edited by boomer; 02-01-2005 at 08:57 PM.

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