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Tractor Pulling Discussion Forum

Super M head (again)

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Chad

09-16-2003 18:52:11

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Hey, I was the guy that asked about my super m's head a while back and I wasn't able to get back on till tonight. My next question is where do you find the numbers on the head? The only spot I didn't check was on top next to the valve cover-knowing my luck that is where they are.

Another question is with this head wouldn't you have more compression than the head with the slant towards the valves?? There is less area in head on my tractor.

And I was wondering what a 450lp head looks like and would it be worth the money to put one on? I pull farm stock-stock rpm's but no limit on horse-power.

Thanks for helping before, sorry I didn't get back.

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randy hall

09-17-2003 20:49:01

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Re: Super M head (again) in reply to Chad, 09-16-2003 18:52:11

if you would be interested i have a 450 propane manifold that i would sell.

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bindernut

09-19-2003 19:42:12

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Re: Re: Super M head (again) in reply to randy hall, 09-17-2003 20:49:01

If he doesn't want it, I might be interested in it. What do you want for it?

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Thank you guys

09-17-2003 19:35:59

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Re: Super M head (again) in reply to Chad, 09-16-2003 18:52:11

Thanks for all the help. I think I am going to look into the lp manifold and get it on the dyno just to get everything set better. I want to hold off on the engine rebuild for one more year-bought a Farmall 1206 that is taking my "play" funds right now-trying to make that one pull better too.

Hey dctom-red runs the roost around my area, only one case comes to pull and goes home mad everytime. But each to their own-nothing against case, I am just a farmall guy for life.

Chad

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dctom

09-17-2003 10:03:04

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Re: Super M head (again) in reply to Chad, 09-16-2003 18:52:11

hey chad; chads has some good advice but i have better, TRADE IT OFF ON A DC CASE AND GO OUT AND BEAT ALL THOES RED ONES CHEAPER TOO DCTOM

chads, tell it like it is LOL

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ChadS

09-17-2003 10:32:59

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Re: Re: Super M head (again) in reply to dctom, 09-17-2003 10:03:04

Ha Ha Ha!!! DC case tractors are great pullers, belive me, DCTOM has 2 tough DC's!!! DCTOM, how many hp was your old modified DC?? I know that it did not lack for power!!! ChadS

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Stuart martin

09-16-2003 19:58:36

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Re: Super M head (again) in reply to Chad, 09-16-2003 18:52:11

i have a super m and it has M&W 4 1/8 pistons and a 450 gas head and it gets 60 hp on my dyno, I know of a header manifold that will give u 10- 15 horse. A stiffe gov spring helps a lot. If your governor is wore out, the needle on the dyno will dance around and it wont wind up like its suppose to.Higher octane fuel helps but you will have to change plugs and timing on distributor. If you want to spend a little money you can polish your head and intake yourself or have some one port and polish it, that will cost a little more. look into a hot cam

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ChadS

09-16-2003 19:01:00

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Re: Super M head (again) in reply to Chad, 09-16-2003 18:52:11

The casting number should be under the valve cover. The lp heads combustion chamber is wider and is more shallow. The combustion chamber is the same shape as the head gasket bore, Yes, it is worth it, but there are other options out there. Have you run a compression test yet? The intake ports are differnt on the 450 gas heads, It is less restrictive, would breathe easier. Let us know what the compression is, I will give you a rough estimate of what it is capable of. ChadS

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Chad

09-16-2003 19:17:15

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Re: Re: Super M head (again) in reply to ChadS, 09-16-2003 19:01:00

The old super m holds 120 psi even in all four cylinders. I have electronic ignition on it, a larger carb, and a stiffer spring in the governer already. Just looking for that extra power. Could you do something to the stock manifold for more? Can't really go to headers, they wouldn't let me pull.

Any help is great, got to stay one step ahead of my buddy-we each pull super m's.

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Flyin Farmall

09-16-2003 19:38:28

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Re: Re: Re: Super M head (again) in reply to Chad, 09-16-2003 19:17:15

Find an LP manifold,and portmatch it to intake gasket.

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Chad

09-16-2003 19:42:41

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Re: Re: Re: Re: Super M head (again) in reply to Flyin Farmall, 09-16-2003 19:38:28

Does a lp manifold look a lot different than a stock super m's?? I have a couple of pulls that are pretty strict.

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ChadS

09-16-2003 19:25:57

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Re: Re: Re: Super M head (again) in reply to Chad, 09-16-2003 19:17:15

Oh yeah, lots of good suggestions to offer you. I have just what you are looking for. email me at hpuller2001@yahoo.com for more info. I would say that at 120 psi. you have flat top pistons or a small dome on the pistons. I have a real nice set of M&W 4 1/8 high dome pistons for sale if you are interested. the domes are over 1/2in tall. They are for a SM-450. also, check out "need help with m" post, I left some carb tips on there as well. When you changed the spring, how much rpm di it give you before you reset them?? ChadS

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Chad

09-16-2003 19:38:51

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Re: Re: Re: Re: Super M head (again) in reply to ChadS, 09-16-2003 19:25:57

When I got tested at a pull at full throttle it was running 2200 rpm's. And it does only have flat top pistons in it. My best bet would be to get it on the dyno to set the carb and timing better right? I have just started getting into this and can manage 3rd places some of the time but need to step it up for next year. We are all done around here (western wisconsin) for the year. 1 left but can't make it.

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Flyin Farmall

09-17-2003 21:00:33

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Re: Re: Re: Re: Re: Super M head (again) in reply to Chad , 09-16-2003 19:38:51

Chad,the LP manifold has a kind of Y shape to it.There a few more pulls left yet this year if you want to come a little east.There are 3-4 just west of Green Bay.

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TimC

09-16-2003 20:30:57

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Re: Re: Re: Re: Re: Super M head (again) in reply to Chad , 09-16-2003 19:38:51

Check intake valve when exhaust starts to open. Check exhaust valve when intake starts to close.

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ChadS

09-16-2003 20:34:36

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Re: Re: Re: Re: Re: Re: Super M head (again) in reply to TimC, 09-16-2003 20:30:57

Hi TimC, Could that help cyl pressure?? H is getting better. ChadS

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TimC

09-17-2003 19:40:07

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Re: Re: Re: Re: Re: Re: Re: Super M head (again) in reply to ChadS, 09-16-2003 20:34:36

What it does is make sure that no part of those big mushroom lifters are near the entrance ramp but will be for sure on the base circle of the cam.

H, really? You probably don't want to mention it much here or you will really get some bashing. Glad I could help. Save some for something wilder.
:).

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ChadS

09-18-2003 07:26:25

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Re: Re: Re: Re: Re: Re: Re: Re: Super M head (agai in reply to TimC, 09-17-2003 19:40:07

Trust me, I did. ChadS

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ChadS

09-16-2003 20:11:43

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Re: Re: Re: Re: Re: Super M head (again) in reply to Chad , 09-16-2003 19:38:51

I belive the LP manifold is a 2 piece. it is a lot bigger than the stock manifold, it is in the parts book so they should let you use it. Stuart had some good tips just do 1 thing at a time, start with the carb, then the timing, then use a compression guage and recheck the valve lash, the guage lets you check you work, try it, When setting valve lash I use the method of 1 valve completly open and the other completly closed. Makes a difference besides going by the book. Just more of my 2 cents worth, ChadS

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