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4" bore

Posted By CK 11 Years Ago
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yalincoln
Posted 11 Years Ago
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hi, massey harris did that with a tractor motor. they cut the block out at the top and cut the cleeves out at the bottom. they used a 1/4" steel plate and furnace brazed the new sleeves in at the top. they sealed the plate when they set it down in  the recess in the block at the top and they used O-rings at the bottom of the sleeves like a diesel. don't know if it would work with a high rpm motor. it still would be expensive unless you had a mill and a boreing bar.

 lincoln/merc. y-blocks &mel's                                                               bucyrus, ohio.
CK
Posted 11 Years Ago
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As for the manifold, a pair of spacer plates could assist.
And regarding the cam, well I'm not looking towards a larger stroke than 3.5".
I have heard of sleeves being fitted and after a hard day at it the sleeves began to move. This another reason I thought adding the plate, just like a turbo plate yet one that is attached to the sleeves, screwed in or welded before pressing in. So the plate sits on top of the standard deck.
I remember talking to Lyndsey y bloke about bill saintclair and that he fabricated a block from steel plates. This has been another way about it I have considered. Yet fabbing from aluminium plates.
LordMrFord
Posted 11 Years Ago
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charliemccraney (8/30/2014)
A deck plate will also require that other issues be resolved, like spacers for the intake or a custom intake, header clearance , hood clearance,  It is an expensive proposition, possibly expensive enough that if you are serious, you need to call Verne about that block.


...and block might crack somewhere because every headbolt will stretch.

But plate machined in to block around cylinder tops might work. I have heard some rumours that some turbo-Nissan guys do that.


Hyvinkää, FI
charliemccraney
Posted 11 Years Ago
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A deck plate will also require that other issues be resolved, like spacers for the intake or a custom intake, header clearance , hood clearance,  It is an expensive proposition, possibly expensive enough that if you are serious, you need to call Verne about that block.


Lawrenceville, GA
NoShortcuts
Posted 11 Years Ago
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NoShortcuts (8/29/2014)

In case you missed it, on 8-16-14 one of our members posted this article regarding John Mummert's latest exploits working within the existing y-block casting form. 

http://www.jalopyjournal.com/forum/threads/y-block-dyno-day.938305/


Article summary...
John Mummert writes . . ."We took the new 331 cu. in. Y block up to the dyno Tuesday, August 12th,2014.  We played with a few things trying to get it ready to stuff into the 64' Falcon."
Specifications:
331ci
3.84 bore
3.57 stroke
13.0:1 static compression
1.7:1 rocker arms
254 duration .600 lift camshaft

Best dyno pull with the dual plane ported intake manifold . . . 513 hp @ 7100 rpm, 425 tq @ 5200 rpm

Best pull with the single plane intake manifold . . . 532 hp @ 7000 rpm, 438 tq @ 5400 rpm


Components
- 1959 292 block lightened 10 lbs

- Ported Mummert Aluminum heads
- Ford forged steel truck crank offset ground to Honda rod journal
- Molnar 6.125 c to c  rods

- Racetec 10cc dome pistons
- Trend tool steel lifters

- Smith Bros. pushrods .080" wall Chromalloy w/ 5/16 ball at the bottom for the TREND tool steel lifters

- Mummert Billet timing set

- MSD distributor

- Oil pump stock



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NoShortcuts
Posted 11 Years Ago
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CK (8/29/2014)
Yet if the sleeves were screwed into the plate, or if a 1/4" plate was introduced which the sleeves rested in. Do you think it would hold the forces?

CK, Ted Eaton, Tim McMaster, and John Mummert (perhaps others) have done everything possible to enlarge an existing Ford y-block to obtain maximum cubic inch displacement.  Both Tim and Ted have pursued the sleeving of all eight cylinders.  My recollection is that Ted's was to accomplish a 4 inch bore.

An internally redesigned engine block casting, like that proposed by Verne Schumann, is what is called for.

In case you missed it, on 8-16-14 one of our members posted this article regarding John Mummert's latest exploits working within the existing y-block casting form. 

http://www.jalopyjournal.com/forum/threads/y-block-dyno-day.938305/


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ian57tbird
Posted 11 Years Ago
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As John M pointed out to me, moving the cam position causes other problems, the distributor has to be moved which then causes problems driving the oil pump.
CK
Posted 11 Years Ago
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Yet if the sleeves were screwed into the plate, or if a 1/4" plate was introduced which the sleeves rested in. Do you think it would hold the forces?
aussiebill
Posted 11 Years Ago
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No Shortcuts,

  Thanks for vernes specification sheet re proposed new block, looks good ! i had thought there was talk of moving cam tunnel higher but this shows will be standard.


  AussieBill            YYYY    Forever Y Block     YYYY

 Down Under, Australia

NoShortcuts
Posted 11 Years Ago
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I copied this from another of Ted's inputs to the thread referenced, AussieBill...

Ted (2/4/2013)

I found this full page info sheet detailing the new Schumann block casting in Y-Block Magazine issue #109.  Suggested selling price for the block is $3975.  Click on the link below the picture for a larger image that’s easier to read giving more detail on the block.

http://www.y-blocksforever.com/forums/Uploads/Images/1665f7ea-42bb-44d6-8953-7027.jpg 

Click here for larger image

My recollection is that Verne's price was for a fully machined block, too!    Smile


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