Logo
Results 1 to 15 of 15
  1. #1

    Default Replacing 1978 Mercruiser 228hp engines

    We've purchased a 1978 Bertram 28 FBC with original twin Mercruiser 228s. They look like they'll likely need to be replaced (2100-2300 hrs). Any ideas where to pick up rebuilt compatible engines? Is there anything newer that would be an "easy" swap out?

  2. #2
    Join Date
    Sep 2008
    Location
    Maryland - USA
    Posts
    6,824

    Default Re: Replacing 1978 Mercruiser 228hp engines

    I'd be inclined to get a pair of 350's - should go right back in.....

    "Easy" is in the eye of the beholder....one thing to consider is what you have is damn near 40 years old.....so, I'd suggest you consider what you are thinking about.....'easy' may mean spending a bit more and getting complete engines....and don't forget the gears.

  3. #3
    Join Date
    Dec 2006
    Location
    Chaumont Bay, N.y., USA
    Posts
    5,218

    Default Re: Replacing 1978 Mercruiser 228hp engines

    Ayuh,.... The 228 is a SBC, a 305 Chevy,....

    The 260 is a SBC, a 350 Chevy,... Exactly the same, with a bigger bore, 'n stroke,...

    Plug, 'n play swap,....
    Any Grease is Better,... Than No grease at All....

  4. #4
    Join Date
    Jun 2008
    Location
    Island Heights, NJ,
    Posts
    2,604

    Default Re: Replacing 1978 Mercruiser 228hp engines

    When I reengined my boat I went from a 283 CID 185HP to a 5.7L 260HP w/FWC. The engine was a few inches taller due to going from log style end fire manifolds to center rise dry joints. IMHO, buy factory new all up engines ( aftermarket FWC if you want to save a few $$) In the course of multiple seasons of ownership of a boat like yours and its likely use, you won't "find" the dollars additional spent for new engines vs rebuilts.
    Capt Bob
    1969 23ft ChrisCraft Lancer
    Merc 5.7L 260HP/ Volvo 280
    1972 22ft Bristol
    Honda 7.5HP 4 stroke Long shaft

  5. #5
    Join Date
    Sep 2003
    Location
    New Tripoli, PA, USA!
    Posts
    15,263

    Default Re: Replacing 1978 Mercruiser 228hp engines

    Those are great boats and have a fine resale value, especially with new 350 engines. Go for it!

    Jeff

  6. #6

    Default Re: Replacing 1978 Mercruiser 228hp engines

    Thank you all for the replies. Any ideas on where to pick these up and what total labor costs/hours might look like? I know it can vary a ton just looking for a ballpark range. Going to start getting some quotes this week.

    Found these, wondering if anyone has ever purchased from them?


    http://www.usmarineengine.com/1978-3...iser-230HP.htm
    Last edited by jobjohnny; 09-13-2017 at 02:45 PM.

  7. #7
    Join Date
    Sep 2003
    Location
    New Tripoli, PA, USA!
    Posts
    15,263

    Default Re: Replacing 1978 Mercruiser 228hp engines

    A bit pricey! All you need are a pair of decent, ordinary 350s and that boat will fly.

    Have you tried GOOD used engines on the internet? Lots of good engines get removed from bad boats.

    Jeff

  8. #8
    Join Date
    Sep 2008
    Location
    Maryland - USA
    Posts
    6,824

    Default Re: Replacing 1978 Mercruiser 228hp engines

    I'm a little skeptical of the owner's story/claims - i can't believe 15+knots from a couple hundred HP at high speed. Without seeing more detail of his build, can't say. He does understand torque is the key driver, so that's good....

  9. #9
    Join Date
    May 2010
    Location
    DC Burbs/Maryland Eastern Shore
    Posts
    1,127

    Default Re: Replacing 1978 Mercruiser 228hp engines

    Those engines are merely middle aged, nowhere near death...if you feel you must repower with new, go ahead. I'd first get the engines tested for health; compression and leak-down test. Maybe new or reconditioned heads and a performance cam, a new timing set and you'll easily have your 200 plus HP.
    Practicing the ancient art of ren-ching

  10. #10
    Join Date
    May 2010
    Location
    DC Burbs/Maryland Eastern Shore
    Posts
    1,127

    Default Re: Replacing 1978 Mercruiser 228hp engines

    A performance MARINE cam, that is...
    Practicing the ancient art of ren-ching

  11. #11

    Default Re: Replacing 1978 Mercruiser 228hp engines

    Quote Originally Posted by o2batsea View Post
    A performance MARINE cam, that is...
    Thank you. Took another good look at her yesterday, definitely going to need some work. The starboard Y-pipe is pretty corroded. That being said, she started right up and doesn't sound like a bucket of bolts in a cement mixer so hopeful some cleaning up and rebuilding will be possible. Having a mechanic do a full inspection tomorrow.

    We still haven't purchased the boat, hopefully tomorrow we'll have a better idea of exactly what we're getting into. At this age and price, I'm expecting to spend a good amount of money to get her in decent shape. I love the boat, but don't want to make a huge mistake.

  12. #12
    Join Date
    Sep 2003
    Location
    New Tripoli, PA, USA!
    Posts
    15,263

    Default Re: Replacing 1978 Mercruiser 228hp engines

    Just remember this: They are well loved and treasured boats! A marina/ company in Worton Creek, MD remanufactures the famous 32 footer and sells LOTS of them.

    Jeff

  13. #13

    Default Re: Replacing 1978 Mercruiser 228hp engines

    Quote Originally Posted by fastjeff View Post
    Just remember this: They are well loved and treasured boats! A marina/ company in Worton Creek, MD remanufactures the famous 32 footer and sells LOTS of them.

    Jeff
    I get it! That's why we're somewhat attached to it. That being said, I've read that finding Y Pipes that fit these older Mercruisers might be damn near impossible, making it likely we'll have to have them made. Anyone have any input on that. I've heard nightmare stories of having to spend 5k just to get a custom piece made for an older boat like this.

  14. #14
    Join Date
    Sep 2008
    Location
    Maryland - USA
    Posts
    6,824

    Default Re: Replacing 1978 Mercruiser 228hp engines

    these are inboards, correct?

    If that's the case, there's nothing magic (or Mercruiser) about the exhaust system components (beyond the elbows).....I/o units are a different story.....

  15. #15
    Join Date
    Sep 2003
    Location
    New Tripoli, PA, USA!
    Posts
    15,263

    Default Re: Replacing 1978 Mercruiser 228hp engines

    Agreed. You can buy all kinds of premade fiberglass exhaust components: Ys, Els, etc.

    Jeff

Similar Threads

  1. 1980 mercruiser 305 228hp inboard problem
    By johnhardy in forum Other Gas Inboard Mfgs IO and Sterndrive Questions
    Replies: 1
    Last Post: 10-08-2012, 07:54 PM
  2. Replacing a 1978 Johnson 140 with something newer
    By Happy in Belize in forum Johnson Evinrude Outboard Forum
    Replies: 4
    Last Post: 01-07-2011, 02:36 PM
  3. Replacing 350Qs with new engines amp gears
    By chriscraft351 in forum Chris Craft Engine Forum
    Replies: 2
    Last Post: 12-01-2006, 11:37 AM
  4. Replacing impeller on 1978 OMC 185
    By rolltacoruiz in forum OMC Sterndrive and Inboard Archive
    Replies: 5
    Last Post: 07-19-2006, 07:13 PM
  5. Mercruiser 30L replacing 25L
    By Guy G in forum Mercruiser Sterndrive Archive
    Replies: 0
    Last Post: 12-31-1969, 08:00 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •