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Post Info TOPIC: 283 ci hp question


Guru

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283 ci hp question


is the 283-195 HP  2brl carb engine the same as the 283-220 HP-4brl engine internally ? it seems like a lot of HP gain just on carburetion....confuse



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bob lewis


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GM generally rated engines with a 4bbl at 15% over 2bbl version and dual exhausts also at 15% over.

So 195 x 115% = 224.25.



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Built March 9, 1973 - Oshawa ON

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220 HP is the same except for dual exaust, 4gc carb, and clutch fan.

The HP gain is from the extra air flow in and out, and less drag from the fan.

Thats it, thats all.



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Beaumontguru

MY BEAUMONT HAS 4 STUDDED TIRES AND 2 BLOCKHEATERS......AND LOTS OF OIL UNDERNEATH.  The other one has a longer roof.



A Poncho Legend!

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Yup, for fun I checked numbers for cam and heads. Both the same.

I forgot about the fan part.

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Guru

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thanx for the info !!!

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bob lewis


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Yes it is.



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Uber Guru

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So am I right in assuming that the only hp gain from a clutch fan is when it's not engaged, and when it is engaged it's the same hp as a regular fan?...

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"So when you spot violence, or bigotry, or intolerance or fear or just garden-variety hatred or ignorance, just look it in the eye and think... The good outnumber you, and we always will."  Patton Oswalt



Poncho Master!

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Nailhead - I thought about changing to an electric fan but was concerned about having enough charging capacity. Do you upgrade the alternator when you add the fan?

I think my alternator is only about 40 amp.

Thx


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