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301 gasser

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allis3 View Drop Down
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Joined: 29 Jul 2012
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Post Options Post Options   Thanks (0) Thanks(0)   Quote allis3 Quote  Post ReplyReply Direct Link To This Post Topic: 301 gasser
    Posted: 06 Sep 2018 at 8:52pm
How big has anyone built a 301 gas for pulling
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DrAllis View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 07 Sep 2018 at 7:22am
442. Next question.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote allis3 Quote  Post ReplyReply Direct Link To This Post Posted: 07 Sep 2018 at 8:58am
That’s descent but we’re gonna be competing 8-10 mph with RDs and big cube Oliver’s and Deere’s. Hoping to get up close to 600
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 07 Sep 2018 at 10:16am
Not gonna happen with a 2000 series AC.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote allis3 Quote  Post ReplyReply Direct Link To This Post Posted: 07 Sep 2018 at 11:05am
Not enough room to swing ,
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 07 Sep 2018 at 1:38pm
442 is 4 1/2" bore X  4 5/8" stroke and I had to grind notches in the camshaft to clear the rods when they swing by. Same bore with a 6 inch stroke is 572 cubes and I see no way to accomplish that much swing even with custom made conn rods, but maybe  if there's enough $$$$$$ applied to the job   ??
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Post Options Post Options   Thanks (0) Thanks(0)   Quote allis3 Quote  Post ReplyReply Direct Link To This Post Posted: 07 Sep 2018 at 2:35pm
I haven’t been in the 301s , built quite a few 226s. Biggest being a little over 400 cubes . I guess I’ll take one apart and see what happens thanks for your response
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Post Options Post Options   Thanks (0) Thanks(0)   Quote d17brown Quote  Post ReplyReply Direct Link To This Post Posted: 09 Sep 2018 at 7:55pm
had a 226 to 435cubes
phil
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allis3 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote allis3 Quote  Post ReplyReply Direct Link To This Post Posted: 10 Sep 2018 at 8:06am
Yes I’ve built some around that big , but not the 6 cylinder, I’ll just have to get inside and see
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AaronSEIA Quote  Post ReplyReply Direct Link To This Post Posted: 10 Sep 2018 at 4:37pm
How do you get a 226 to 435?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote d17brown Quote  Post ReplyReply Direct Link To This Post Posted: 10 Sep 2018 at 7:53pm
4.706 bore, 6.25 stroke. Ran in a D17,
phil
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AaronSEIA Quote  Post ReplyReply Direct Link To This Post Posted: 10 Sep 2018 at 8:34pm
How thin was the webbing between the cylinders?  I don't recall there being that much extra room.  It is impressive what you guys can do to make cubes.
AaronSEIA
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allis3 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote allis3 Quote  Post ReplyReply Direct Link To This Post Posted: 11 Sep 2018 at 6:53am
My sleeves were touching,I believe they were .120 thick
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Larry W. Quote  Post ReplyReply Direct Link To This Post Posted: 20 Feb 2019 at 12:42pm
530 ci
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bsallis180 Quote  Post ReplyReply Direct Link To This Post Posted: 20 Feb 2019 at 12:57pm
Wow Larry that’s impressive what was your bore and stroke? That is amazing
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Post Options Post Options   Thanks (0) Thanks(0)   Quote d17brown Quote  Post ReplyReply Direct Link To This Post Posted: 21 Feb 2019 at 2:37pm
i have a 301 gas motor for sale complete

phil
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 23 Feb 2019 at 9:52pm
4.500" on the bore and 5.550" on the stroke gets you 530 cubes.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bsallis180 Quote  Post ReplyReply Direct Link To This Post Posted: 24 Feb 2019 at 6:03pm
So doc how big can you go on a NA gas till the flow of the head won’t flow enough to fill the bore?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 25 Feb 2019 at 7:10am
Don't have any idea. I don't have access to a flow-bench. The carburetor (to a degree) controls how many gallons of air per minute the engine can breathe. I have found using the same stock carb, cylinder head and camshaft and going from 310 to 360 to 390 cubes over the years, in open RPM classes, the more cubes, the less RPM the engine can run, but the torque down low keeps increasing. Turbocharged diesel engine HP also is limited by the size and efficiency of the turbo compressor inlet size. More air in means more potential HP. More cubes, with the same turbo air inlet size, keeps bringing down the top RPM's and adding to the low end torque.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bsallis180 Quote  Post ReplyReply Direct Link To This Post Posted: 25 Feb 2019 at 1:47pm
Regardless the toque will still rise as long as the holes fill up. What for carburetor anything larger then 1-7/8?
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