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Farmall & IHC Tractors Discussion Forum
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Farmall H stroker kit?

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FatRedneck

02-22-2006 04:34:31




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Does anyone know where I can find a +2" stroker kit for a farmall H? any help is happily accepted!!!




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h puller

02-22-2006 16:40:59




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 Re: Farmall H stroker kit? in reply to FatRedneck, 02-22-2006 04:34:31  
Give Keith Merfield a call. He sells a kit using Chevy 305 pistons and strokes the crank 2 inches. Your camshaft will need to be clearanced and lots of block grinding.



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Fat Redneck

02-23-2006 04:09:01




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 Re: Farmall H stroker kit? in reply to h puller, 02-22-2006 16:40:59  
could you find me a phone #?



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Mcred

02-23-2006 05:19:00




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 Re: Farmall H stroker kit? in reply to Fat Redneck, 02-23-2006 04:09:01  
if he is talking about the same Merfeld Im thinking of he is located in Debuke IA and his number is 1-563-582-8710



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ChadS

02-22-2006 09:58:04




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 Re: Farmall H stroker kit? in reply to FatRedneck, 02-22-2006 04:34:31  
it can be done, but it wont run long! I puked a 350ci H bout a year or so ago,, Nothing was reusable. Broke the block, Just way too much stroke!! 6 inch is common in the big stroker H style engines,, it takes custom rods and pistons,, you can build a 5-3/4 stroke X 3-13/16 bore, using all IH parts, and will be good for 90+ hp easily. Stock H rods used, IH 301 pistons, Not too much block grinding,, I ran a 270 engine for years, with a H block,, now I stepped up to a 350 block, The H block was bored past the original block, and sleeves pressed in,, it leaked water into the oil pan. The 350 block is much thicker,, so no sleeves to leak. What kind of pulling do you intend on doing? ChadS

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FatRedneck

02-23-2006 04:17:23




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 Re: Farmall H stroker kit? in reply to ChadS, 02-22-2006 09:58:04  
I plan on pulling the 3500# open or division three in the NATPA circuit but where I live in Maryland, there isn't any places to get this stuff so i'm hopen ya'll can find me a place out in the midwest that produces aftermarket parts for an H. I don't plan on running sleeves, I plan on punching out the sleeves and fitting Chevy pistons to fit along with a stroker kit.



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FatRedneck

02-23-2006 04:12:56




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 Re: Farmall H stroker kit? in reply to ChadS, 02-22-2006 09:58:04  
I plan on pulling the 3500# open or division three in the NATPA circuit but where I live in Maryland, there isn't any places to get this stuff so i'm hopen ya'll can find me a place out in the midwest that produces aftermarket parts for an H.



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Dr.EVIL

02-22-2006 08:30:11




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 Re: Farmall H stroker kit? in reply to FatRedneck, 02-22-2006 04:34:31  
M&W never made an H stroker crank. Denny's Carb Shop advertises stroker kits for M,SM,400,450 but I think as large as they go on an M is 1". They never advertise anything for the H,SH,300,350 either. Too many things that are important get in the way like oil pan siderails, camshafts, cylinder walls, oil pumps, etc.



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Nat 2

02-22-2006 06:59:13




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 Re: Farmall H stroker kit? in reply to FatRedneck, 02-22-2006 04:34:31  
Do you know for sure that there is/was such a thing, or is this just wishful thinking?

Frankly, I think you're out of luck unless you are, or know a good toolmaker with lots of time on his hands.

Frankly, I don't think you can increase an H's stroke by a full 2". The pistons will fall out the bottom of the sleeves...



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FatRedneck

02-23-2006 04:22:47




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 Re: Farmall H stroker kit? in reply to Nat 2, 02-22-2006 06:59:13  
guys out my way have H's with 3" stroker motors using the stock H block. they told me they ordered their kit from denny's carb shop, but when I called there they told me they never pffered such a thing. thats shy I asked you guys.



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ChadS

02-23-2006 07:47:55




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 Re: Farmall H stroker kit? in reply to FatRedneck, 02-23-2006 04:22:47  
There is nobody building 3 inch strokers for H farmall's. 2 inches is darn near too much, and would never try it again. Be conservative, build something that will run for a long time. An engine like your describing, may have 1, maybe two seasons of running time before it self destructs. Watch Merfelds cranks,, but at that stroke, Id be leary of any of them anyways. It wont be oil pressure lubricated at 6.25 stroke,, it will be like the oliver engines,, a splash lube system. The reason is,, you build up a crank that much, you cut thru the oil passage holes in the crank, that happens at 5-3/4 stroke, but is still oil pressure lubricated,, You would be surprized that 90+hp in a H farmall is plenty,, for a H farmall. Thats solid 4th gear with 15.5's cut tires, stock H tranny, and what ever rpm you want to run. If your building a H to out pull a Oliver 77,, etc etc,, dont try to out speed them,, out power them,,, it can be done. I have a H farmall that put most hotter 77's on the trailer in its day. ChadS

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FatRedneck

02-24-2006 04:11:17




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 Re: Farmall H stroker kit? in reply to ChadS, 02-23-2006 07:47:55  
I agreeabout that, those guys were probably talking out their behind.I was just going along with their talkin, but when they ran it on the dyno they were makin 113hp which I can't see a +2" stroker makin. you say be conservative, well how much over stock do you mean.Remember I'm losin the sleeves.



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ChadS

02-24-2006 06:32:02




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 Re: Farmall H stroker kit? in reply to FatRedneck, 02-24-2006 04:11:17  
No where near stock,,,, But you can build a stock rod engine to run with it any day of the week. At 3500,, power really isnt an issue, when you have the HP,, its putting it to the track. If you got,, lets say 100 hp,, on a tight track,, if you dont have the balance right, that 100hp aint worth squat. A well prepped 5-3/4 stroker, with a 350 block bored to 3-13/16, with a good cam, head and carb,, you could plow with it!! Thats what you should think of when building an engine,, reliability,, Yeah, you gotta do some grinding to clear it,, but its not bad,, You go put that other tractor on a plow or a dyno under a longer period of time,, and it will blow,, either a head gasket will pop, or something more drastic,, Sounds to me, like they run on the ragged edge,, where, you dont really need to do that,, Kinda takes the consistancy out of the sport,, Think about that H you speak of,,, does it have enough power?? too much?? does it spin em out everytime? too much,, and it becomes hard to handle, but the right power can be alot of fun when it hooks up and takes you for a nice ride towards thew full pull line. ChadS

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FatRedneck

02-24-2006 11:14:49




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 Re: Farmall H stroker kit? in reply to ChadS, 02-24-2006 06:32:02  
thanks alot for your help, it is much appreciated!!!



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FatRedneck

02-23-2006 04:37:29




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 Re: Farmall H stroker kit? in reply to FatRedneck, 02-23-2006 04:22:47  
sorry about the misspelled words but my fat fingers wasn't made for a keyboard. I said they never offered it and thats why I asked you guys. one guy I pull with explained to me that pistons for a chevy small block are taller and won't fall out of the cylinder and they still had plenty of head clearance with the proper crank. He is a retired machinist but nieter him or the shop that he had worked for will make me the parts.

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MagMan

02-22-2006 05:04:17




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 Re: Farmall H stroker kit? in reply to FatRedneck, 02-22-2006 04:34:31  
WoW that seems like alot, Have you tryed the pulling board ? Alot of the guys that pull the high power tractors are machinists and such and make there own parts or know what ones will fit what from motors. I cant say I know alot about stroking but I know that the old M&W Stroker kits for the M were only like 1/2" I think and with that kit I believe you could run it on the farm with close to 90 Hp. Thats why I said 2" seemed like alot. But Like I said I dont know about that kind of thing. JON

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