Go Back  Offshoreonly.com > Technical > Drives and Lower Units
What are these? Merc Pre Alpha with SS Lower >

What are these? Merc Pre Alpha with SS Lower

Notices

What are these? Merc Pre Alpha with SS Lower

Thread Tools
 
Old 09-14-2014 | 05:46 PM
  #1  
Thread Starter
Registered
 
Joined: Feb 2011
Posts: 10
Likes: 0
From: Crystal River, FL
Default What are these? Merc Pre Alpha with SS Lower

These were on the back of my 28' Cigarette when I bought it. I upgraded the power to 500hp 383's. With that being said, I am going to upgrade to Bravos and trying to figure out what these are worth. I don't want to ruin them if someone can use them on a smaller boat. I haven't taken them apart, but do know that they are pre-alpha uppers with SS or CLE lowers with cut down shafts. They are counter-rotating and 1.5 ratio. They are the same length as a standard Alpha. What are you guy's thoughts?

[ATTACH=CONFIG]529570[/ATTACH]
Attached Thumbnails What are these? Merc Pre Alpha with SS Lower-outdrive.jpg  
Mason84 is offline  
Reply
Old 09-14-2014 | 09:30 PM
  #2  
Registered
 
Joined: Jul 2013
Posts: 108
Likes: 0
From: Galloway, NJ
Default

Still got that tie bar???
msher44 is offline  
Reply
Old 09-14-2014 | 10:00 PM
  #3  
Registered
 
Joined: Oct 2012
Posts: 1,332
Likes: 2
From: dfw texas
Default

I'm thinking if you sell the drive your not going to have enough room to remove it lol .prob should yank bearing carrier and upper cap and try to see how much they have left to.give .a lot of work for nil unless that boat was hauling the mail
airjunky is offline  
Reply
Old 09-15-2014 | 12:40 AM
  #4  
BUP
Banned
 
Joined: Jul 2011
Posts: 9,594
Likes: 46
From: Ft. Worth TX
Default

Your upper is pre alpha. The upper with the eyelet hook on the top cap if I remember correctly ranged from 1966 thru 1979 or maybe thru 1980 or 1981. A true Alpha One persay started for year models 1984, but really was refined in 1986..

Mercruiser listings of these type of drives went from 60's to current. they offered the sterndrive in 1961 (if I remember correctly) after Volvo Penta.

I - 1963,
IA,IB,IC, & EZ Shift 1964 - 1966
I-R 1966 or 1967 - ?
R - 1983
MR 1984 thru 1990
Alpha One 1984 thru 1990
Alpha One Gen II - 1991 to current.

Last edited by BUP; 09-15-2014 at 01:05 AM.
BUP is offline  
Reply
Old 09-15-2014 | 07:16 AM
  #5  
Thread Starter
Registered
 
Joined: Feb 2011
Posts: 10
Likes: 0
From: Crystal River, FL
Default

msher44,

Yes, I have the tie bar that goes with these. The problem is, the drives are very close together. My boat is a staggered set up.

airjunky,

Yea, its in there pretty tight. I have to put it all the way back in building to get other boats in and out. I expect to be in the low 80's with my setup when done. I got a Bravo setup on trade for doing some work, so they are sitting there, and will be better for my setup. Also, don't really want to deal with the shift interrupt.

Thanks to all for replying.
Mason84 is offline  
Reply
Old 10-01-2014 | 11:16 AM
  #6  
Registered
 
Joined: Apr 2013
Posts: 30
Likes: 0
Default

i might be interested in a lower for my pre-alpha
steves86ta is offline  
Reply
Old 10-02-2014 | 08:35 AM
  #7  
Registered
10 Year Member
 
Joined: Apr 2014
Posts: 2,346
Likes: 191
Default

Mason84,
i may well be interested in one also if you decide to sell. Please keep me in mind, would look perfect on my vintage formula single. I am checking with some old school mercruser racing mechanics to identify for you, i'll let you know what i find.
Happy boating.
GLENAMY 242SS is offline  
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.