Farmall C overbore and stepped head pistons.

PretendFarmer · Jul 27, 2014

I have a bone stock farmall c. 3" flat head pistons and low compression have proven to be gutless at the pulls.
I'm not looking to go hog wild here. I want to keep the stock block. Question is, for the C I saw that the overbore is from 3 to 3 1/8" but for the super C the overbore goes from 3 1/8 to 3 1/4". Can I put the 3 1/4" sleeve and piston kit in this C-113 block?

gene bender · Jul 27, 2014

Tes but you will need to get the bottom where the sleeve and o-ring go bored to accept the 3 1/4 sleeve it has been done. They only need to remove 60 thous so the big sleeve will fit. That will give you 135 cu in. Then get a 240 gov spring and you can run 2000 rpms or so. Next would be a 240 head and manifld.

PretendFarmer · Jul 27, 2014

I have a 140. Would it be beneficial to swap out parts from that? It's used as a functional tractor and could easily spare a few ponies.

gene bender · Jul 27, 2014

That block will take the 3 1/4 kit but you would lose the hy system and the plate covering the hy pump would show that the block was not original

PretendFarmer · Jul 27, 2014

(quoted from post at 21:26:48 07/27/14) That block will take the 3 1/4 kit but you would lose the hy system and the plate covering the hy pump would show that the block was not original

Hy system? Not sure what that is.
I've heard that the C would benefit from the 140's head, manifold and carb. If I put the 3 1/8" stepped head pistons with the 140 head, manifold and carb what type of gain do you think I would see? The club rules require stock block do swapping in the 140 block isn't legal.

gene bender · Jul 27, 2014

Hy is hydraulic system so bore your block and go to the 3 1/4 kit that way it still looks stock get the hi-dome kit and you canspeed up the rpms.

PretendFarmer · Jul 27, 2014

It had hydraulics on it. Took it off. I made a plate to cover where the pump was.

mkirsch · Jul 28, 2014

I think Gene's got A or B on the brain.

Like you said the C has a hydraulic system so nobody would be the wiser about the 140 block at 20'. The only way anyone would know is if they looked at the numbers.

This pulling stuff just makes people nuts...

gene bender · Jul 28, 2014

You are correct there seems to be some inquires about going to larger 3 1/4 and i got mixed up. Still the bes way is to remove a sleeve to see just whats in that engine as over the yrs you never now what someone has done to that engine over the yrs ive had enough of them apart latest job was someone took a power unit and installed in a C then put rear wheels from a 240 utility on the back makes the front set higher and huge wide tires on the back looks funny but works great with the Woods 59 mounted it way back towards the rear wheels. Had not ran in 5yrs cleaned points checked compression and fresh gas it started rite up. Then had to rewire to make charging system work as amp guage was broke and gen shot with bad armature.

PretendFarmer · Jul 28, 2014

I do know it has 3" flat top pistons in as I've had the head off. I suppose you could tear it down and see that it could be a 123 block with 3" flattop pistons and it but I would be very surprised to see that.

Farmall C overbore and stepped head pistons.

PretendFarmer

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gene bender

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PretendFarmer

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gene bender

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PretendFarmer

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gene bender

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PretendFarmer

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mkirsch

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gene bender

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PretendFarmer

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