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heymow.com - Lawn Mower Racing Forum > Engine Help > Briggs Flathead > Topic: Improved heads with chicken footing
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Author Topic: Improved heads with chicken footing  (Read 995 times)
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DavidB
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« on: March 22, 2012, 12:46:59 AM »
Ok I heard and saw a set of heads on a car that were chicken footed and wonder if it would work good on a flat head. I have cut in the pattern into my heads but haven't tested yet
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The Tank
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« Reply #1 on: March 22, 2012, 06:44:12 AM »
Quote from: DavidB on March 22, 2012, 12:46:59 AM
Ok I heard and saw a set of heads on a car that were chicken footed and wonder if it would work good on a flat head. I have cut in the pattern into my heads but haven't tested yet

Rooster will love this one bigsmile
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« Reply #2 on: March 22, 2012, 06:49:34 AM »
I have one flatty done that way. Makes fire burn more even over piston. Dont know how much it help alone But every bit helps in the long run.
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Larry n Jeannie
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« Reply #2 on: March 22, 2012, 06:49:34 AM »
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Rooster
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« Reply #3 on: March 22, 2012, 10:24:21 AM »
LOL...I believe you are referring to Fire Slotting?
Never heard it called Chicken Footed? BUT I LIKE IT!
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« Reply #4 on: March 22, 2012, 01:24:31 PM »
THATS ALL YOU ROOSTER. badgrin
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« Reply #5 on: March 22, 2012, 03:59:10 PM »
We could start calling them slots "ROOSTER FOOTIN"
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« Reply #6 on: March 22, 2012, 09:10:17 PM »
I've tried this and didn't notice any advantage really. I asked the guys down the road who owned the worlds fastest flathead car (unsure if this is still the case) and they said don't waste your time. They said head ventilation and getting the compression ratio bang on was the key and that they just had endless knocking issues (needed to be v-slotted and the corners seriously radiused) but once solved, noticed no gains on the track.
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« Reply #7 on: March 25, 2012, 06:28:13 PM »
Thanks guys idk if it is helping much but im getting a more even burn and a more efficient engine.
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