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  #1  
Old 07-22-2015, 06:38 PM
Spark Spark is offline
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Join Date: Jul 2015
Boat: Mastercraft Barefoot 190 1990 454
Location: northeast
Posts: 3
Cracked Block

Hello to everyone
I am a new here. I just picked up 1990 Master-Craft Barefoot 190.
Nice looking boat but the block is cracked. The previous
did not drain the block last fall. I would like to know
which blocks can I use to replace this one. I would like to
strip this engine and use the parts that I can. Have been
reading this site since I got the boat, lots of good info here.
Any advice would be appreciated.
Thank you Spark
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  #2  
Old 07-22-2015, 06:45 PM
Spark Spark is offline
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Boat: Mastercraft Barefoot 190 1990 454
Location: northeast
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I forgot to mention its a 454
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  #3  
Old 07-22-2015, 06:47 PM
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1990lmtd 1990lmtd is online now
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Join Date: Jan 2010
Boat: 1990 Prostar 190 Limited 351 Power slot
Location: Northeast
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There are subtle differences between automotive blocks and marine blocks. The ones I am most sure of are the freeze plugs, (brass instead of steel) head and intake gaskets and usually the camshaft. The intake, carb, exhaust manifolds and risers (after a thorough inspection) maybe the heads also, the oil pan, valve covers and all of the front of engine gear should be reusable. Good time to replace the water pump, oil pump of course and maybe upgrade to some ported heads for that extra HP. Lots of more knowledgeable people on this site than I, I'm sure they will be along shortly. Good luck and welcome.
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Old 07-22-2015, 06:47 PM
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1990lmtd 1990lmtd is online now
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Quote:
Originally Posted by Spark View Post
I forgot to mention its a 454
Then you can probably disregard everything I said.
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  #5  
Old 07-22-2015, 07:15 PM
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Bouyhead Bouyhead is offline
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Boat: 1996 PS 190
Location: NYC
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Welcome to TT. Will you be doing the work yourself? Where is the boat from? Any salt water use? Hours?
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1996 ProStar 190
PCM ZR6 W/ Zero Off
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  #6  
Old 07-22-2015, 08:19 PM
Spark Spark is offline
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Join Date: Jul 2015
Boat: Mastercraft Barefoot 190 1990 454
Location: northeast
Posts: 3
Thank you for the replies
I am going to do the work myself. The boat is from Alberta
I have the center head off. There is a long crack
running up the block to the head behind the push rods
Everything is disconnected I am going to lift the engine
out with tranny attached. Just waiting till I have something
to put back in. Need to know what options I have. Someone told me
454 blocks up to 95 have the same bolt pattern. Beside replacing the
frost plugs, would a car,truck or motorhome block fit?
The hour counter says 590 hard to say if its correct
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  #7  
Old 07-22-2015, 10:23 PM
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Shaun R Shaun R is online now
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Boat: 1995 Prostar 190 LT1/Powerslot
Location: Austin, Texas
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No difference between the auto and marine blocks. Just make sure you get a Gen1 block and you will be fine.
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  #8  
Old 07-23-2015, 09:19 AM
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Rockman Rockman is offline
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Join Date: Aug 2004
Boat: '95 BF200 Yamaha ProV 200, '94 PS190 LT1 1:1
Location: SW Burbs of Chi-Town
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Just because the block is cracked does not mean it is toasted...where is the crack and how big?
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  #9  
Old 07-23-2015, 10:22 AM
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bturner2 bturner2 is offline
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Join Date: Mar 2008
Boat: Maristar 200VRS w/ X2 Package, 2007, 310HP
Location: Brighton, MI
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You may want to look at a long block. Check out Michigan Motorz.......

http://www.michiganmotorz.com/marine...s-c-31_51.html
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Old 07-23-2015, 11:59 AM
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thatsmrmastercraft thatsmrmastercraft is offline
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Boat: 1977 Stars & Stripes
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Jasper Engine Marine will take care of you. Highest in quality, warranty and price.

http://www.jasperengines.com/marine-engines.php
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