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175hpor 205hp43 mercruiser engine

stamas

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"Hi,I have a 1987 4.3liter mer

"Hi,I have a 1987 4.3liter mercruiser v6 rated at 175hp.with a bad block.I also have a 1990 4.3 short block that the man said was rated at 205hp.Are the blocks(and heads)the same and the difference is in the carbs.and manifolds?Thanks"
 
"Ayuh,..

The 175hp motors a


"Ayuh,..

The 175hp motors are 2bbl. carbed motors,..
The 205hp motors have 4bbl. carbs...."
 
"Hey,thanks for the info,I hav

"Hey,thanks for the info,I have alot of winter left to get this motor back together.I can't even see the boat yet,just a white mound."
 
"Now I'm curious, Mine is

"Now I'm curious, Mine is a 97 bryant 4.3. It has a Weber 4 bbl carb. Originally this boat had the 2 bbl carb. So what would my HP be? I've been guessing 190, but never been really sure."
 
Probably 190 hp. The mpi 4.3L

Probably 190 hp. The mpi 4.3L engine is rated at 205 hp as I understand it.
 
"2000 4.3 190 hp in my boat. A

"2000 4.3 190 hp in my boat. At that time the 205 hp was different because of vortex heads, cam, 4 bbl carb or fuel injection. But we are only as good as the information we are fed.
Carl"
 
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