4.6250 piston in a stock 350 block

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Mark O'Neal
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Re: 4.6250 piston in a stock 350 block

Post by Mark O'Neal »

No one said they had to be round.
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Re: 4.6250 piston in a stock 350 block

Post by Walter R. Malik »

Mark O'Neal wrote: Sun Oct 29, 2017 4:12 am No one said they had to be round.
Nope ... in the past, Honda had a race motorcycle engine with "flat sided oval" pistons. The rod was a solid part of the very short piston with only one ring, (a Wankle seal), which intentionally rocked in the bore as it went through its stroke and the length of the oval bore was hourglass shaped in one plane.
It didn't last long because of the complexity with combustion sealing issues but, it did happen.

Figuring the bore volume was not very easy.
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Re: 4.6250 piston in a stock 350 block

Post by GARY C »

A stock block 350 in a Honda motor cycle must have been a screamer, getting past the water jackets must have been a real engineering feat, you gotta hand it to them foreigners for innovative design.
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Re: 4.6250 piston in a stock 350 block

Post by Walter R. Malik »

SchmidtMotorWorks wrote: Sat Sep 30, 2017 1:34 pm Can you figure out how to put a 4.625 piston in a stock 350 block?

This is a stupid question to waste your time.

Please make 20 pages of posts arguing about it.
The stupid inquiry was how to put that piston in the block ... never intimating that it had to actually run.

We still have a few more pages to go here ... :lol:
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Re: 4.6250 piston in a stock 350 block

Post by GARY C »

Walter R. Malik wrote: Mon Oct 30, 2017 10:28 am
SchmidtMotorWorks wrote: Sat Sep 30, 2017 1:34 pm Can you figure out how to put a 4.625 piston in a stock 350 block?

This is a stupid question to waste your time.

Please make 20 pages of posts arguing about it.
The stupid inquiry was how to put that piston in the block ... never intimating that it had to actually run.

We still have a few more pages to go here ... :lol:
Exactly, so it had to go in a stock block as OP said, so it could not be oval and could not be possible as opposed to the thread that sponded this thread solely for the intent of mocking another forum member. Thanks for making my point for me.
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Re: 4.6250 piston in a stock 350 block

Post by user-29956 »

Walter R. Malik wrote: Mon Oct 30, 2017 10:28 am
SchmidtMotorWorks wrote: Sat Sep 30, 2017 1:34 pm Can you figure out how to put a 4.625 piston in a stock 350 block?

This is a stupid question to waste your time.

Please make 20 pages of posts arguing about it.
The stupid inquiry was how to put that piston in the block ... never intimating that it had to actually run.

We still have a few more pages to go here ... :lol:
Perhaps I could work something out on this dilemma. Could we possibly look into developing this idea but downsizing to a 4.500 Piston?
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Re: 4.6250 piston in a stock 350 block

Post by Stan Weiss »

What would be the max bore size one could fit with up down offset bore center lines and furnace brazed in sheets?

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Re: 4.6250 piston in a stock 350 block

Post by GARY C »

Vee-Dizzie wrote: Tue Oct 31, 2017 10:35 am
Walter R. Malik wrote: Mon Oct 30, 2017 10:28 am
SchmidtMotorWorks wrote: Sat Sep 30, 2017 1:34 pm Can you figure out how to put a 4.625 piston in a stock 350 block?

This is a stupid question to waste your time.

Please make 20 pages of posts arguing about it.
The stupid inquiry was how to put that piston in the block ... never intimating that it had to actually run.

We still have a few more pages to go here ... :lol:
Perhaps I could work something out on this dilemma. Could we possibly look into developing this idea but downsizing to a 4.500 Piston?
Go for it!
Lets see what you got!

Preferably an actual answer LIKE OTHERS GIVE and not more BS!
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THE ABOVE POST IN NO WAY REFLECTS THE VIEWS OF SPEED TALK OR IT'S MEMBERS AND SHOULD BE VIEWED AS ENTERTAINMENT ONLY...Thanks, The Management!
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