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#11
04-17-2013, 07:35 AM
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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
04-18-2013, 02:54 PM
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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.
__________________
Glen 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
05-30-2014, 06:13 AM
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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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#17
06-30-2014, 05:43 PM
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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
06-30-2014, 06:09 PM
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Quote:
__________________
1976 Seacraft CC(Pilot House) Inboard Yanmar 315 1979 Septer I/O no power Sold 
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Linear Mode
