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Does any one know the BHP

P

pat_the_pom

Contributing Member
Can anyone tell me the HP of m

Can anyone tell me the HP of my 1989 OMC V6 4.3L engine please? It has a 4Barrel Rochester carb on it. I cant seem to find any info anywhere.
 
I had a couple of these in my

I had a couple of these in my last boat and the 4 bbl model was rated at 205 hp and the 2bbl was 175 hp.
 
Thanks Bob. Are there any diff

Thanks Bob. Are there any differences to the engine internals on the 4 bbl? 30hp difference seems a lot just because of a different carb. Possible cams different profiles/ bigger valves?
Regards Pat.
 
"Not really sure Pat, looks li

"Not really sure Pat, looks like the cam is the same for both engines in the parts catalog, and it doesn't seem to differentiate between the 2 for the valves either. Might be able to find something out on a GM performance site?"
 
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