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  #11  
Old 04-17-2013, 07:35 AM
Highway12 Highway12 is offline
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Yes, it's a velvet drive 5000 8 degree down angle 1 1/2 : 1 . I talked to Mack Boring in NJ and they sent me the torque converter and bell housing I needed. Watermen around here swear by them on their crab boats. My guess is it will need a 17 x 19 wheel.

It's taking forever to clean up the bilge. The glasswork in those old boats is a little rough to say the least, and I'm glad to get rid of all that waterlogged foam!

I'm cutting down the motor mount stringers and eliminating the boxed out section next to them, so I can add aluminum angle with backing plates bolted through the stringer for the motor mounts. The stringers were wet, but in good shape. No rotten wood.

Once I test fit the motor, I'll take it back apart and glass everything back up.
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  #12  
Old 04-18-2013, 02:54 PM
ct9amr ct9amr is offline
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I have had both velvet drive and ZF trans.
Both great and hold up great.

If you are redoing the bilge try the bilge coat product. Worked great on my shamrock inboard.
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1996 23ft Contender 08 Yamaha 250 HPDI
1965 13ft Cacci craft skiff with 20 Hp tohatsu 4 stroke
1992 20ft Shamrock Predator (Hard Top) 351 FWC PCM Repower SOLD
First boat: 1988 17Ft Shamrock Open 3.0 Mercruiser RWC 140hp Traded
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  #13  
Old 05-30-2014, 06:13 AM
Highway12 Highway12 is offline
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Mac Boring sells a 6' exhaust extension for the motor. The extension plus a rubber exhaust flap on the transom and you will be fine.

My boat has a 22 - 27 kt cruise and will plane out at 11 kts.

My only complaint is low speed vibration from the small diesel. I'm going to try different motor mounts to see if it helps.
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  #14  
Old 05-30-2014, 09:08 AM
kmoose kmoose is offline
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Sounds like a great swap but I bet you will miss the trimable drive.
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  #15  
Old 05-30-2014, 02:14 PM
Wags23 Wags23 is offline
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Mercury now has this engine and they changed the riser. I just installed it with a back pressure relief. I just ran it in my driveway..Going to drop it in Sunday.
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  #16  
Old 05-31-2014, 10:38 AM
Wags23 Wags23 is offline
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Hey Harper how did you make out with the inboard purchase?
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  #17  
Old 06-30-2014, 05:43 PM
Keezdisease Keezdisease is offline
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just bought a 23 seacraft inboard with a 350 small block can you guys tell me the performance numbers for this rig
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  #18  
Old 06-30-2014, 06:09 PM
heynow2203 heynow2203 is offline
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Quote:
Originally Posted by Keezdisease View Post
just bought a 23 seacraft inboard with a 350 small block can you guys tell me the performance numbers for this rig
What's the hp rating?
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  #19  
Old 06-30-2014, 10:11 PM
deepsushi deepsushi is offline
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as a general rule -- the gas inboards cruise 20 - 22 knots and diesel 27 -- 28 knots.
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