MH 44 Pulling Tractor Engine

[MasseyMan1089]

I have a MH44 4 cylinder. I am building it for pulling and I was curious about what guys do to get more cubes & hp. Bigger valves & porting are understood. But what about the cylinders? They are wet sleeves, so what do you do? Bore the sleeve? How about different pistons? Where can I get that sort of thing. I know M&W made a high dome, which would be neat, but I cant find those anymore. Stroking the crank? I just was wondering what people have done and learned already with these...

 

[massey44guy]

How much do you want to spend. Head work is very much needed on a massey 44. Heads are terrible flowing, and these motors really wake up from head work. There is a 4 1/16 high dome piston for it, but expensive for what you get. They are wet sleeve motors. Dont plan on boring the original sleeves past that, they are too thin. The blocks can be bored to accept 4 3/4 pistons or bigger if you want to move head bolts around. The cranks can be stroked to 7.5 inches with custom rods, and trimming on the cam. 6 inches is about as far as you can go using stock rods. I am working on a 6 by 4.310 motor (350 cubes) now that will be for sale shortly. Send me a email if you want more info on massey 44 pulling. Have built them from stock to 500 plus cubes.

 

[MasseyMan1089]

(quoted from post at 23:52:34 02/14/09) How much do you want to spend. Head work is very much needed on a massey 44. Heads are terrible flowing, and these motors really wake up from head work. There is a 4 1/16 high dome piston for it, but expensive for what you get. They are wet sleeve motors. Dont plan on boring the original sleeves past that, they are too thin. The blocks can be bored to accept 4 3/4 pistons or bigger if you want to move head bolts around. The cranks can be stroked to 7.5 inches with custom rods, and trimming on the cam. 6 inches is about as far as you can go using stock rods. I am working on a 6 by 4.310 motor (350 cubes) now that will be for sale shortly. Send me a email if you want more info on massey 44 pulling. Have built them from stock to 500 plus cubes.

What is your email address? I tried a private message, but it didnt work. I would like to talk to you more about the engine and doing the work. How do you move the head bolts around?

 

[massey44guy]

Email is [email protected]

 

[MasseyMan1089]

Has anyone ever tried to put some bigger valves in the head?