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Thread: New motor?

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  1. #1
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    New motor?

    A while back I posted some questions about expanding our garage to house the Classic and our 911 and my wife's Subaru. We finally have plans and are getting ready to break ground in the next week or two. The garage will be big enough to house a 22 Classic with room to get around it. All was going well and I've been looking for a 22 to replace the 18C. Until now.

    Over the past 18 months we have rebuilt the transom and replaced the stringers in the 18. A new gimble, oil pan, timing cover and chain, exhaust manifolds, risers, exhaust tips, trim tabs, etc. So a lot has been done to the 18.

    The last time out we put about 60 miles on and it was running terrible when I got back. I pulled the plugs and on the port side they looked like they were steam cleaned. The heads were pulled and the port head is cracked. Actually, it's more like a hole rotted through. So the extra money that I would put toward a 22 is now being spent on the motor and I've decided to keep the 18 a bit longer so that the garage can be "finished" so that it's more than just a place to work but also a good place to spend time pondering and maybe watching a race from time to time. Besides, running the 18 in rough water on Tampa Bay or the other surrounding areas can be a ton of fun! So this leads to the question that has been asked many times here; what to replace the stock motor with. Chris from Fitch Powerboat Services has a 377 long block if I can talk him out of it. If not I'm looking for options. I'd like to end up with 350 to 375 hp. Reliability is also important. I'm keeping the Alpha as I don't need to do extreme hole shots but we do pull skier's from time to time on the lake. Skier's don't need hard hole shots.

    Just curious what your thoughts are. There's a lot of knowledge here and I'd like to tap into it before I do something and then later hear "you should have..."

    Thanks,
    Chip

    '96 18 Classic
    '69 16 Ski & Sport - sold


  2. #2
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    If it were me .. I would look around for a newer model 350mag... You will be hard pressed to match the reliability and user friendliness of the 350mag/alpha package . If you can get the 377 block and move over your accys', thats not a bad deal either .
    better to die on your feet, than live on your knees

  3. #3
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    I agree for reliability

    Thanks for the advice. I agree that you can't beat the 350 for user friendly and reliability, but i want more performance than that. With a Mirage 21 I top out at around 58 mph at 4800 rpm. The reason for thinking about going to a 22 is to get into the mid 70's top end or mid 60's without running wot all the time. I can give up a little reliability but I'd rather not have something that gives up at 200 hours. I know there are guys like Carl that put big hours on their BBC's without being in the shop all the time. So that's why I was thinking of the 377 or 383.

    '96 18 Classic
    '69 16 Ski & Sport - sold


  4. #4
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    ----If you are looking for a great motor with a WARRANTEE that actually works go to the Michigan Motorz (correct spelling) website and poke around. They have never let me down and prices are good! And,,,dont pay much attention to horse power as Torque is what gets you that nice high cruise......Bill S

  5. #5
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    Thanks

    Quote Originally Posted by olredalert View Post
    ----If you are looking for a great motor with a WARRANTEE that actually works go to the Michigan Motorz (correct spelling) website and poke around. They have never let me down and prices are good! And,,,dont pay much attention to horse power as Torque is what gets you that nice high cruise......Bill S
    Thanks Bill. I've looked around on their site. I have a four bolt intake so I'd have to buy an intake mainfold and probably a carb as well. Will my exhaust manifolds and risers bolt on as they're fairly new? I think the other accessories will bolt right on.

    '96 18 Classic
    '69 16 Ski & Sport - sold


  6. #6
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    Chip, since you had this particular type of problem, are you considering closed cooling?
    George Carter
    Central Florida
    gcarter763@aol.com
    http://kineticocentralfl.com/


    “If you have to argue your science by using fraud, your science is not valid"
    Professor Ian Plimer, Adilaide and Melbourne Universities

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