Big Bore Ford Jubilee

popshoods

New User
I have done some re search on the 134 , 172 , and the 192 Ford Industrial Engine . All three have the same stroke of 3.6
inches . All three use the same connecting rod part number . Same wrist pin . It would seem to me that a person could
REMOVE the sleeves on a Ford Jubilee 134 and bore it to 4.13 inches and install 192 Ford Industrial Engine pistons . Does
this sound plausible to you ? George in Harrison Ohio
 
No.

Blocks are not the same.

Easiest way to increase power is to swap in a 172, but be aware of the pinion support.

Dean
 
The question was NOT about swapping out a Complete engine / block . The question was about using the ORIGINAL 134 Jubilee engine block and boring it out to receive the 4 Cylinder 192 cubic inch 4.13 inch pistons .
 
(quoted from post at 10:24:29 02/11/19)

[i:f0f98014e0]"The question was NOT about swapping out a Complete engine / block . The question was about using the ORIGINAL 134 Jubilee engine block and boring it out to receive the 4 Cylinder 192 cubic inch 4.13 inch pistons ."[/i:f0f98014e0]

what part of this:

[b:f0f98014e0]"No.

Blocks are not the same."[/b:f0f98014e0]

did u not consider an answer to your question?
 

The NAA Jubes were an interim model - between the Ns and Hundreds.
Ford beefed the later models up back there.
On the 800s with the 172 they used a larger differential and heavier rear end housing.
They also did away with the splined axle and hub which was a carry over from the Ns.
And...
They used the same basic rear end from 1955 through 1964 so used parts are more readily available.
The NAAs were only built in 53&54 so not as many of those parts around.
Hundred Series also had heavier transmissions, built to take 45 hp.
We're not here to tell you what to do do.
We just try to give people the facts and let them decide
 
With enough money and/or time, many things are possible, but many things are not practical.

The easiest way to strengthen the rear axle assembly is to swap it out for a 6/8** rear axle assembly while you are swapping the engine.

Dean
 
You seem to know pretty much . What is the outside diameter of the stock 134 sleeves ; or what is the wall thickness of the stock bore 134 sleeves . I can do the rest of the math myself . This is my son Nick's friend's project , and they live in Nashville TN . Last picture is Nick's 941 5 speed with a 172 CID 62.6 HP engine .
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(quoted from post at 14:14:08 02/11/19) You seem to know pretty much . What is the outside diameter of the stock 134 sleeves ; or what is the wall thickness of the stock bore 134 sleeves . I can do the rest of the math myself . This is my son Nick's friend's project , and they live in Nashville TN . Last picture is Nick's 941 5 speed with a 172 CID

OD of the 134 sleeve is just over 3.650 so you are talking about roughly .250 overbore in the block or .125 off the wall.

TOH
 
That would be a sleeve wall thickness of about .112 inch . Sounds about right . Leaving the sleeves out and boring to
4.13 inch might be a stretch .
But I think it sounds like the 134 ** without the sleeves ** would be a bore size ( + - ) of 3.9 inches which is actually
the stock bore size of a Ford 172 CID . So it may be an easy improvement to install 172 pistons in the 134 block without
sleeves .


cvphoto12602.jpg


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cvphoto12605.jpg
 
You are right . .250 inch would be required , and would be way too much metal to remove . I screwed up on my dimensions /
math on my last post . My mistake .
 

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