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Technical 4 cylinder mercruiser-engined cars

Discussion in 'The Hokey Ass Message Board' started by dennis g, Oct 9, 2015.

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  1. David Chandler
    Joined: Jan 27, 2007
    Posts: 1,097

    David Chandler
    Member

    A 151 S10 engine might be an option. I considered it, as I owned one for quite some time. Cross flow head, roller cam. The TBI intake I think could be easily adapted to a carburetor; as there is a lot of room under the injector, where the EGR get's dumped into a troth around the riser. It's also a water heated intake. I was told an early Monza distributor would swap to eliminate the computer controls. At one time a recall seeing adapters to mount to a turbo 350 trans. I assume they used a BOP bellhousing pattern, but I could be wrong. A Fiero high volume oil pump fits too. They had a rear sump pan as well. I considered swapping the crank for a longer stroke too. I was told it could be done, and I was told it couldn't be done. Take your pick! I don't recall the valve sizes, but it's probably possible to install bigger valves too. The only thing I noticed was the head casting looked as if the material didn't flow properly, on a similar one I had in a Buick. But it was not in a load bearing area, and it worked without a problem. I would think pistons, other than the stock dished ones could be found too. They had a 4 inch bore, if I remember right. The truck had an automatic with OD, although I don't know which one they used, but with 373 gears it was no slouch.
    Food for thought, if you can get one for next to nothing.
     
  2. Six Ball
    Joined: Oct 8, 2007
    Posts: 2,651

    Six Ball
    Member
    from Nevada

    ere are 3 cam profiles that Erson worked out for me several years ago. # 1 is the mildest and # 3 is the one I got. Probably #1 is the best street cam. Note that these are bases on a 1.70 rocker ratio instead of the stock 1.75. I'm using big block roller rockers because I had some. I don't know how much difference the 0.05 would make.
    100_1910.jpg 100_1909.jpg 100_1908.jpg
     
  3. sdluck
    Joined: Sep 19, 2006
    Posts: 2,178

    sdluck
    Member

    2.85x1.75=490 lift
     
  4. 34Phil
    Joined: Sep 12, 2016
    Posts: 191

    34Phil

  5. Marty Strode
    Joined: Apr 28, 2011
    Posts: 4,011

    Marty Strode
    Member

    Clifford intake. IMG_1761.JPG IMG_1762.JPG IMG_1763.JPG
     
    treb11 likes this.
  6. 1932tub
    Joined: May 31, 2005
    Posts: 364

    1932tub
    Member

    Thanks all for the camshaft info, really enjoying this thread.
     
  7. Six Ball
    Joined: Oct 8, 2007
    Posts: 2,651

    Six Ball
    Member
    from Nevada

  8. gearheadbill
    Joined: Oct 11, 2002
    Posts: 1,254

    gearheadbill
    Member

    This question may have been asked/answered before, but my 153/181head OMC engine does not have a vibration damper on the crank. Is this common on boats? and what should one do for a street car, if anything? 20160919_105927_resized_1.jpg 20160919_105940_resized_1.jpg 20160919_110003_resized_1.jpg 20160919_110018_resized_1.jpg 20160919_110522_resized_1.jpg
     
  9. Six Ball
    Joined: Oct 8, 2007
    Posts: 2,651

    Six Ball
    Member
    from Nevada

    The 153 had no dampener on the crank when a Chevy II, not sure about boat engines. The 181 has a dampener like a small block or six.
     
  10. willymakeit
    Joined: Apr 13, 2009
    Posts: 1,325

    willymakeit
    Member

    I just got one of these given to me. Said number 2 cylinder was low on compression but otherwise good.
    Price was right for something I’m piddling with
     
  11. Six Ball
    Joined: Oct 8, 2007
    Posts: 2,651

    Six Ball
    Member
    from Nevada

    Been "piddling" with mine for years now. I'll get it together some day.
     

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