49 M valves

Trying to get a few more hp out of my 49 M that I use for the weekend tractor pulls. I am going to have the head redone so that it will breath a little better. Can you put in larger valves? And where can you get them? It does have 4" step pistons. I am not trying to go overboard with this tractor but just a little boost. Any advice would be appreciated.

Yea ya can put bigger valves in it and to find then you go into the progressive size book and see what you can go to . don't worry somuch about the exhaust . You would do better finding a 400 or 450 head . Reworking the carb and the dist. as more then likely your old dist. still has the old style advance curve in it and finding a recurve kit or soe old fart with a dist strobe machine that remembers how to use it and knowes what he is doing to limit your total advance , then doing the cam with even just a rebuild and blueprinting will get you somemore ponys .

Do you run out of power currently? Our anitque classes are 1st gear only and very few Ms run out of power before they run out of traction. I'm not sayin, I'm just sayin...be sure you need more power before you start going nuts.

THANK YOU FOR THAT MUCH. I SHOULD HAVE MENTIONED I HAVE ALREADY CONVERTED TO ELECTRONIC IGNITION AND THAT HAS HELPED. AS FOR RUNNING OUT OF POWER OR TRACTION FIRST, I HAVE HAD BOTH HAPPEN. I USUALLY LOOSE TRACTION FIRST AT 5500# BUT IT CAN GO EITHER WAY ON HEAVIER WEIGHTS DEPENDING ON THE TRACK. CARB WORK IS COMING UP ALSO THIS WINTER. HOW MUCH CAN I DO WITH THE CARB AND STILL KEEP THIS TRACTOR AS A USER.

WHY ARE YOU YELLING AT US!?!

I got my SMTA and H carb built by Matt Gall at Motec Engineering in Tipton, IN. Search him out on the internet. He is a MM puller, but does great work on these carbs. Call him up and tell him what you are looking for and he will make it happen.
He opens up the venturi and will play with the jets if you so desire. I told him that I want something that can still run on the farm, but works a little better when pulling. He rebuilds it and dynos it when he tunes it. This way it bolts right on the tractor and is making the most possible power (on his dyno engine, but yours should be pretty similar.) After all it is a stock antique puller so you will be alright.
You better send it in pretty quick so you get it back for pulling season. BTW it comes with the new gasket to bolt the carb to the manifold. I bought one twice now...STUPID.

On a side note, do you happen to have a pulling truck?

Thank you again, I will try to look him up. Around here we still have a few months until season really starts, and sorry I don't have a pulling truck, tractors are expensive enough. Several of the guys I work with do pull trucks, one of which goes all over the US. Several of them also pull tractors from antique up to Hot Farm Stock. Any more ideas?

Anyone out there ever pull a W9 much?

(quoted from post at 19:10:01 03/01/10) Thank you again, I will try to look him up. Around here we still have a few months until season really starts, and sorry I don't have a pulling truck, tractors are expensive enough. Several of the guys I work with do pull trucks, one of which goes all over the US. Several of them also pull tractors from antique up to Hot Farm Stock. Any more ideas?

Anyone out there ever pull a W9 much?

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They are wicked cool to pull! They aren't hands down on the top (like certain Deeres when you set them up right) but they hold their own. Truthfully, a 560 diesel would be the best tractor to pull right now. They just became eligable to pull in antique class (in our club) last year. My SMTA was 7000# points champ and I can't touch him in 8000. 7500 is a little closer bc he is getting too light.

Matt used to have a slower turn around than I would have liked, but he has hired two employees now so it is a lot better. I wouldn't drag my feet on it. Here is his website. http://motecengr.com/ He has $100-150 listed, but I thought mine was like $75. Maybe you can talk him down

An M&W governer and LP manifold certainly wouldn't hurt. You can get a repro manifold from Steiner's now so that should drive the price of a used one down. You will pay out the azz for a M&W governer. If you have a saw tooth throttle get it off your tractor. They WILL come out of their notch and ruin a good pull. It is not if, it is when.

Like he said, 400/450 head will do you a lot of favors. If you really don't like your money go with a 400/450 lp head. I personally don't think any major blueprinting etc is worth it in the stock/slightly modified classes. You have to be pulling a lot more RPMs to really see the benifit from this stuff. If you can get the head ported and polished reasonable I would do it, but I wouldn't throw crazy money at it.

There is a pulling truck here called "Just In Time" I saw your user name and it got me thinking.

Thank you and I have explored the other head options. I will probably get this head worked over, carb done and go from there. I will probably pull the W9 a couple of times this year. I did once last year and purely ran out of traction. I had to keep backing out the throttle to keep the wheels from spinning.
Funny you mention the 560 diesel. I just bought a 560 wheatland. It is a gas, but it will probably find its way to the track a couple of times.

Gas/diesel whatever. I just like to see black smoke. Gas tractors are easier to work on when it comes to the fuel side, but diesels will make LOADS more power with tweaks to the fuel side.
When I need that fix I go play with my buddies "4430." Not much 4430 anymore. I think the sticker now says 4455. They pulled the 406 for a 466 added a built A pump, BIG charger, and ditched a TON of other stuff that you don't need. Pretty sweet!