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Tractor Pulling Discussion Forum

Stroker Motor

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Farmall H Pulle

06-24-2007 11:22:06




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I am going to build a 3.625* 5.25 motor for my H. I have a cam from Lemmons a M carb electroinc egnition. The head is an 8043 that has 300 springs and has been milled. How much grinding work is involved in a 5.25 stroker and how much H.P. am i going to be looking at.

Thank you, Miles




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ChadS

06-25-2007 07:48:15




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 Re: Stroker Motor in reply to Farmall H Puller, 06-24-2007 11:22:06  
Im gonna warn you right now, get the best safety glasses, and face shield you can get. Cast iron isnt fun to get removed from your eyeball on a sunday, and have to wait till monday to see the Doc. If you grind the rods just right, not much block work, a little, but not as much. In the end, you have a lite wieght IH rod. Start by grinding down the rods on a big belt sander, or a table sander, take the hump off the back down to the whole area is smooth, (this will be the cam side of the rod) Wear welding or heavy gloves, they get a little warm to hold. Dont get them too hot while grinding, dont create hot spots. Have something to hang them from. I just finished up a set of stroker rods for my H. Chad

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MJF

06-25-2007 18:20:05




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 Re: Stroker Motor in reply to ChadS, 06-25-2007 07:48:15  
Does that effect the balance of the engine if there not weights are not exact, I dunno just wondered.



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ChadS

06-26-2007 07:17:17




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 Re: Stroker Motor in reply to MJF, 06-25-2007 18:20:05  
The shaped rods would be better than the stock set, stock rods can be off just from casting flash, or up by the wrist pin, the casting was made taller on some rods and got put in a motor, so that thows off the weight piece by piece. Id like to put in a set cut for a stroker in a stock type motor and see if any thing changes. the overall weight, and the weight of each end of the rod and make them all weigh the same, has to be better than a stock rod. chad

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CGpuller

06-25-2007 17:35:52




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 Re: Stroker Motor in reply to ChadS, 06-25-2007 07:48:15  
Hey Chad, Can you post a photo of the finished rod? Thanks.



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ChadS

06-26-2007 07:32:35




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 Re: Stroker Motor in reply to CGpuller, 06-25-2007 17:35:52  
Yeah, the picture I should show you is the first set I ever cut down with a 4 inch hand grinder! The block had to be cut beyond what it needed VS what I do now. A set of rods in the right shape,, shaped to fit will keep more material in the block and keep the strength in the block. Chad



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