I need an upper unit for a 4.3L OMC Cobra sterndrive. Any help?

[txmdc]

So thanks to the guys on here guiding me in the right direction, I've found that I have trashed by upper unit. Any suggestions other than eBay (found 2 iffy ones on there)?
I have an 87 OMC cobra sterndrive connected to a 4.3L.

Thanks!

 

[Gary H NC]

Re: I need an upper unit for a 4.3L OMC Cobra sterndrive. Any help?

If the upper is trashed then all the metal shavings are in the lower section too.
You also need the correct gear ratio drive for the 4.3
You may want to do the SEI conversion.

http://www.sterndrive.cc/mm5/merchant.mvc?Screen=PROD&Product_Code=9D-116&Category_Code=Cobra

 

[sea wolf]

Re: I need an upper unit for a 4.3L OMC Cobra sterndrive. Any help?

If the upper is trashed then all the metal shavings are in the lower section too.
You also need the correct gear ratio drive for the 4.3
You may want to do the SEI conversion.

http://www.sterndrive.cc/mm5/merchant.mvc?Screen=PROD&Product_Code=9D-116&Category_Code=Cobra

Yea, Crowley Marine lists a complete 4.3 reman for $3300 with a 1 yr. warranty + a $150 core charge. You can get an SEI for about 2 grand with shipping with a 3 yr. warranty. I think it'a a no brainer.

 

[txmdc]

Re: I need an upper unit for a 4.3L OMC Cobra sterndrive. Any help?

I found a used complete cobra sterndrive for $500 cash. If I get it I'm going to pull the upper unit cover off and look at the gears. If I do this, I'll have a spare lower (my current one). Of course I'd need to tear it down and find out if any of the metal shavings messed anything up.

What do you guys think? $500 is a lot easier to let go of than $2-3k...

 

[sea wolf]

Re: I need an upper unit for a 4.3L OMC Cobra sterndrive. Any help?

If u plan on using the lower half of the new one, I would tear it down & look at the condition of the lower gearset. No sense in swapping anything without knowing if the dog clutch, etc. are ok or not. I hear ya on spending 2k on a new drive. I'm in the same boat so to speak. I want to replace my Cobra & do the SEI swap but it just ain't in the budget right now.

 

[Gary H NC]

Re: I need an upper unit for a 4.3L OMC Cobra sterndrive. Any help?

Are the gear ratios the same on the used drive?