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[email protected] tschnautz@gmail.com is offline
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First recorded activity by BoatBanter: Jul 2006
Posts: 879
Default 4.3 2bbl to 4.3 4bbl

I do agree, that you probably wouldn't ahve that much ore to gain, but
I suppose it depends on what you want. For pulling a ski , i would
think you could get a better hole shot, and plane out quicker. But I do
agree,t hat you probably wouldn't notice that much difference on top
end.



But even so, arn't the fron two bbls. usually smaller on a 4, and the
bigger back two usually kick in at 3/4 to WOT?


Lee henning wrote:
The other three things that may contribute to higher horsepower are the cam,
compression ratio and valve size. You should check out those things before
you go to the trouble changing the carb.
LD
"crystalguy" wrote in message
oups.com...
I recently purchased a 1988 Sea Ray with a Mercruiser V-6 4.3 with a 2
barrel carb (175 hp)
Is it possible to convert this to a 4.3 with 4 barrel carb (205hp)
Is it just a matter of changing the carb and intake or are the
ingnitions different?

Any input would be greatly appreciated.