super c kit in a B

Anonymous-0 · Dec 28, 2009

HEY GUY,S JUST A QUICK QUESTION HAS ANYBODY EVER TRIED PUTTING A SUPER C ENGINE KIT IN A B BLOCK? TRYING TO BUILD A NICE LITTLE ALL AROUND TRACTOR LEANING MORE TO DEAD WEIGH PULL, AND STILL HAND START WITHOUT KILLING ME!

ScottyHOMeY · Dec 28, 2009

Hugh would have had this right on top of his head, but I'm gonna speculate that the SuperC kit isn't coing to work in a B block. I think the outside diameter of the SuperC sleeves is too large.

The SuperC from the factory had sleeves with a 3-1/8" bore to make it a 123. A lot of the kits now have the thinner-walled sleeves to make 3-1/4", making a 131 out of it.

On the flip side, the original sleeves in your B were a three inch bore (113), and 3-1/8" sleeve kits for it are available about anywhere, to make it into a 123. If your motor has been overhauled in the past, it may already have the 3-1/8" in it.

Both motors (the original 113 in A/Bs and the 123 in the SuperC) used the same cam, so there's not much to be gained except for using a larger-bored sleeve an your choice of piston to ride in it.

Some rear wheel weights and a 123 in a B makes a fine little tractor. I've got 3-1/8" Fire Craters in my BN. It does quite well as is, but will be better on dead weight if I ever get my wheel weights painted and onto it.

El Toro · Dec 28, 2009

The sleeves are longer in a Super C engine and I don't think would fit your B's block. Just get a sleeve kit as Scotty suggested to fit your B. I did that on a Farmall A back in 1975. If you have enough power to cause wheel slippage more power won't help. I used the 3.125" overbore kit
in the A. Back then the cost was $80.00 from our local IH dealer. Hal

Anonymous-0 · Dec 28, 2009

There's a 153-cubic engine combine engine that some people use.

Red Dave · Dec 28, 2009

I don't know what you mean by "Super C Kit", but an overbore set of sleeves and pistons will fit very nicely in a B giving it 123 cubic inches, just like a Super C has. I've done it to my B.

Just make sure to get a set of sleeves that fit the bore of your block. There were two different outside diameters of sleeves used. Measure at the bottom of the sleeve, where the O-Ring seal goes.

Anonymous-0 · Dec 28, 2009

THANKS FOR THE INSITE. WOULD LOOOOVE TO PUT THE 153 IN BUT TO MANY PEOPLE KNOW WHAT TO LOOK FOR. A FREIND HAS ONE IN A BN AND WE CALL IT B+,3500 OPEN IN 2ND GEAR YEE HAW!!!!. IN MY TRAVELS I PICKED UP A CRANK MAYBE I'LL LOOK INTO OFFSET GRINDING FOR A LITTLE MORE STROKE?

gene bender · Dec 29, 2009

Which bore are you looking for. The 3 1/8 and hi=dome pistons work without any machine work. You can get the block bored to install the 3 1/4 hi-domes that will give you 135cu in. Now do you need more hp then get a 349 head.

super c kit in a B

Anonymous-0

Well-known Member

ScottyHOMeY

Well-known Member

El Toro

Well-known Member

Anonymous-0

Well-known Member

Red Dave

Well-known Member

Anonymous-0

Well-known Member

gene bender

Well-known Member

Similar threads