Interested in just knowing about the 4.3L MerCruiser engines.

Jaime mark

Cadet
Joined
Oct 10, 2024
Messages
28
1997 mercruiser 4.3 vortec carb 2bbl or factory?
190hp 2bbl is great. 4bbl intake and edllele intake. For top end turning point 3 blade Prop23 water tubing is not necessary for my application
I'm not worried about tubing !!!
 

Jaime mark

Cadet
Joined
Oct 10, 2024
Messages
28
Is the 4 blade aluminum turning prop manufacturer says what it says?
Proper maintenance is necessary as a given

I havev't found a website yet to verify my HP on a 1997 Mercruiser 4.3L engine SN OK170939. Cust service at Mercury Marine verified it should be 190 hp with a 4 bbl but it has a 2 bbl. Other forums say the 2 bbl is 190 and the 4bbl is 205 or210 hp. Iboats boat specs say a 1997 Sea Ray 185 as this is say the engine supplied is 190 hp. What year did the horsepower change, 96 or 97?
 

jbcurt00

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Staff member
Joined
Oct 25, 2011
Messages
25,034
Please stop posting to old inactive topics.

The Dennis Moore SBC topic you posted to was from 2005, none of the posting members in that topic are still active

After 90days w no new posts, consider an inactive topic closed and for research only, not to be posted to.
 
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