Hi All,
My name is Jay from Illinois. I have been reading YT for quite a while and learning what I can. I recently bought a non running Farmall M that I intend to get restored. I bought the tractor with a stuck engine and have since tore everything down and cleaned in the process. I need to send the block to get boiled and the crank to get polished. I have learning from reading many threads that an "Original" M doesn't really exist. Likely over the years they have been overhauled once if not more than once and usually set for higher horse power. So here is my question, what Overhaul kit do I order? The serial number is 155242 which makes it around a 48' model. I know this engine has been into before. It has stepped head pistons and a 8060DB head which I believe is a SM head. I've made as many measurements and notes as possible.
Block/parent bore is 4-1/8"
Pistons- 4" Stepped Head
Rod & Main bearings- 0.002
Wrist pin- 1"
I thought originally that this M had a SM kit put in, but now i am leaning towards a 400 or 450 264 cu" kit. The wrist pin diameter is what is throwing me off. I know i can get a 264 Overhaul kit that will include new wrist pins & bushings. I would like to stay with what the tractor has in it or at least not lose any potential horsepower. Hard to say when i have never seen the tractor run. Do i order a SM overhaul kit or a 400/450 kit? I'm pretty sure I'm over thinking on which kit to get. I just need someone to chime in and point me in the right direction. I really have no intention of farming or tractor pulling. Just parading around and maybe occasionally a plow day or pull. Any help or advice would be greatly appreciated.
Thanks!!
JV
My name is Jay from Illinois. I have been reading YT for quite a while and learning what I can. I recently bought a non running Farmall M that I intend to get restored. I bought the tractor with a stuck engine and have since tore everything down and cleaned in the process. I need to send the block to get boiled and the crank to get polished. I have learning from reading many threads that an "Original" M doesn't really exist. Likely over the years they have been overhauled once if not more than once and usually set for higher horse power. So here is my question, what Overhaul kit do I order? The serial number is 155242 which makes it around a 48' model. I know this engine has been into before. It has stepped head pistons and a 8060DB head which I believe is a SM head. I've made as many measurements and notes as possible.
Block/parent bore is 4-1/8"
Pistons- 4" Stepped Head
Rod & Main bearings- 0.002
Wrist pin- 1"
I thought originally that this M had a SM kit put in, but now i am leaning towards a 400 or 450 264 cu" kit. The wrist pin diameter is what is throwing me off. I know i can get a 264 Overhaul kit that will include new wrist pins & bushings. I would like to stay with what the tractor has in it or at least not lose any potential horsepower. Hard to say when i have never seen the tractor run. Do i order a SM overhaul kit or a 400/450 kit? I'm pretty sure I'm over thinking on which kit to get. I just need someone to chime in and point me in the right direction. I really have no intention of farming or tractor pulling. Just parading around and maybe occasionally a plow day or pull. Any help or advice would be greatly appreciated.
Thanks!!
JV