Briggs and Stratton horse power question

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  #1  
Old 08-06-15, 05:56 PM
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Briggs and Stratton horse power question

I have a 126T02 Briggs engine. Its rated as a 6.75 hp

Also I have a 125K02 thats a 6.5 hp

The same numbers for pistons and carbs come in my manuals. What makes the difference ? RPMS ?
 
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Old 08-06-15, 07:46 PM
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Probably the label adds another 1/4 horsepower.
 
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Old 08-09-15, 05:49 PM
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Different crank and block number. Maybe a longer stroke ?
 
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Old 08-09-15, 05:53 PM
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Lol they could make money like that.
 
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Old 08-09-15, 06:53 PM
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I wanted to put LOL after RPMS !!
 
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Old 08-09-15, 10:17 PM
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There is no notable difference between many of these different rated engines. It's marketing for the most part. I wasn't really kidding about the only difference being the label. Same stroke, same compression ratio, same everything. RPM could be different, that's a possibility, but that would be about the only difference.
 
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Old 08-10-15, 02:32 AM
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My main reason for asking is that I want to take a crank from a 6.5 and put in a 6.75 block, but the blocks are different #s in the manuals.
 
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Old 08-10-15, 08:20 AM
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Go to the Briggs site and check the part numbers for the cranks. Have a good one. Geo
 
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Old 08-10-15, 10:18 AM
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I looked them up last week crank #s are different on a 6.5 and a 6.75. I am wandering why.

Except for the fact that the ends of the cranks might be different for attaching certain pulleys or blade flanges.
 
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Old 08-10-15, 10:46 AM
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If the block numbers are different, then I would say that there's a chance the crank won't interchange, but I don't know. Briggs made several engines with the same parts inside and different hp ratings, but I don't know of anything that tells which ones are the same and which ones are different without looking at individual part numbers of each. If the part numbers are the same, it's a safe bet that parts will interchange. If the numbers are different, it's a gamble.
 
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