2005 Mercruier carb w/210hp???

void7910

Petty Officer 3rd Class
Joined
Sep 7, 2013
Messages
93
Ok, so I have a stealership trying to tell me a boat I am looking at has a 2005 Mercruiser 4.3 Thunderbolt V with 210hp. Does such a beast exist? My understanding is by that year there were the 190hp carb, 220hp MPI from the factory and that the 2-barrel 190hp carb can be tuned up aftermarket to 210-220. Is this guy full of it or am I missing something?
 

alldodge

Moderator
Staff member
Joined
Mar 8, 2009
Messages
40,754
The 210 is not quit so much slight of hand. The manual shows carb at 205 and the EFI at 210. So your talking about 5 HP. Now the 190HP rating is from the Bodensee and Swiss Regulations and comes from testing done at different RPM's

V6.jpg
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
70,525
Ayuh,.... Welcome Aboard,..... My '93/94 4.3LX with the Merc/ Weber/ Carter 4bbl. carb is said to produce 205 hp, the 2bbl. carb rated at 190 hp, I believe,...

Vortec heads came out in '96, so a later motor oughta be able to produce 210/ 215 hp, with the 4 bbl. carb, 'n Vortec heads,...
 

achris

More fish than mountain goat
Joined
May 19, 2004
Messages
27,468
The highest rating a 2 barrel CARBed 4.3 has been given by Merc is 190. 4 barrels are at 205 and 210, and EFI and MPI have been run up to 220hp.

And in 2005 the only options were a 220 MPI or a 190 Carbed.

Chris......
 
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