1995 GM 305 Merc 5.0 v8 190 HP :(

jeepnsam

Petty Officer 2nd Class
Joined
May 20, 2010
Messages
128
2 barrel merc carb only puts out 190 HP so i'm thinking about putting in a 4 barrel to get 220 HP.
Anyone ever done a conversion? Is there a kit that can be purchased for the DIYer? then
have a real marine shop dial it in with a lake test??

Thanks,
Sam
 

Fordiesel69

Lieutenant Junior Grade
Joined
Sep 18, 2009
Messages
1,146
Re: 1995 GM 305 Merc 5.0 v8 190 HP :(

Its called the 5.0 LX

Your 2 bbl puts out 200HP, the 4 bbl puts out 220/225 depending on year. Its just a manifold and carburetor swap and can be done at home.
 

John_S

Rear Admiral
Joined
Jun 21, 2004
Messages
4,269
Re: 1995 GM 305 Merc 5.0 v8 190 HP :(

Given your location, if you boat in the salt and raw water cooled, you will need a cast-iron intake or an aluminum one with bronzed water passages.

- Edelbrock 1409
- Fuel line
- Flame arrestor
- Intake gasket set
- Throttle bracket
 
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