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340 engine in a Super C ?

12500 Views 7 Replies 5 Participants Last post by  georgeky
Would this be a direct bolt in or alot of work for something that may not work at all? Super C i have sat for years without the head or oil pan on it so you can imagine what shape it is in. It did come with the head and most of the engine parts including a new engine kit but no idea what pushrod went where or what rod goes in what cylinder. I am open to any suggestions as to a replacement engine as a super c engine is not easily found locally here...200...230...240..340. Not to concerned about correctness police on this one. Thanks for any and all replies.
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200 and 230 should bolt rightup, not 100% on the other 2. If you have the kit, Id just put it back together, unless something is wrong with the block
I agree with John M on this one! It is not really that big of an issue on the pushrod order. The idea behind keeping keeping them in order is they will wear to a certain rocker arm! If you knew what order they were in, i would keep it that way, but you have to adjust the clearance on each one anyway. As far as the rods go; they should be numbered! Number goes toward the camshaft!

It doesn't cost that much to have the block cleaned and checked for cracks!
call me number 3 for building the existing engine. Since the C and Super C do not have a frame, the block is a stressed structural member. Not all available engines that may bolt up are up to the task of bearing the weight, and resisting the torque during use.
I see putting the original motor back together...just thinking by the time i track down all the parts that may be missing and after looking at the crank it is pitted pretty bad so it may not be able to be polished out a replacement may be needed i could possibly just find a complete engine and bolt it in. Thanks for the opinions.
jhamrick said:
I see putting the original motor back together...just thinking by the time i track down all the parts that may be missing and after looking at the crank it is pitted pretty bad so it may not be able to be polished out a replacement may be needed i could possibly just find a complete engine and bolt it in. Thanks for the opinions.
What are you missing on it? I have a few engine parts from a C. Let me know what you may need?
jhamrick said:
I see putting the original motor back together...just thinking by the time i track down all the parts that may be missing and after looking at the crank it is pitted pretty bad so it may not be able to be polished out a replacement may be needed i could possibly just find a complete engine and bolt it in. Thanks for the opinions.
I understand your position!!! Been there myself. Only problem I had was I had to have a running tractor fast, I bought a used engine, used it while I rebuilt the original engine and swapped it back in later. Heck, the one you have may not be the original!
any of those engines will fit the SuperC since they are all in the same family. the 340 uses a 135 CI engine and will build a fire in the SC. hOWEVER A STOCK 123 ENGINE FROM A sc CAN BE REBORED TO 135 ci . . The c135 cranks out about 36hp which is a big jump up from 23 of the 123. engines that will work in sc are c113,c123,c135,c from any of the following tractors Farmall A,B,C,super a,super c, 100,130,140,200,230,240, 404,2404 . I suggest going with the C123 or I have a good head for a Super C and maybe some other parts.
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