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Farmall & IHC Tractors Discussion Forum
Show Parts for Model:

More ph out of farmall H

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Rustyparts

05-06-2014 19:07:24
198.228.228.173



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I have a farmall H that needs to be over haul and l would like to get a little more hp out of it at the same price as stock parts would be. Dose any one know if I could make a C-164 engine super H out of my stock C-152 H engine or is there a better route to go.




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caterpillar guy

05-07-2014 19:15:47
75.134.175.75



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 Re: More ph out of farmall H in reply to Rustyparts, 05-06-2014 19:07:24  
If you're looking for to much more. You need to just go buy the HP you need. It will be much more rewarding than working an H to death, over powering it.



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Rustyparts

05-07-2014 19:28:22
198.228.228.147



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 Re: More ph out of farmall H in reply to caterpillar guy, 05-07-2014 19:15:47  
This is true I have a John Deere 60 for some of the heavy work. The H came from the family farm and I was just looking to restore it.i was looking to increase the HP for the same money I wasn't going to get crazy with it but I do appreciate all of the helpful hints and good tips. Thanks again to all



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D Slater

05-07-2014 19:53:05
184.14.195.235



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 Re: More ph out of farmall H in reply to Rustyparts, 05-07-2014 19:28:22  
Thin wall sleeve rebuild kit will give you a 3-7/16 piston size and around 158 CI. If the tractor was rebuilt in the last 40 years it probably is already that size. If just rebuilding with regular rebuild parts make sure you have a gasoline head.



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hghrdnhck

05-07-2014 08:19:50
70.194.9.31



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 Re: More ph out of farmall H in reply to Rustyparts, 05-06-2014 19:07:24  
300/350 pistons, fire crater pistons, m carb, 300/350 lp head. Or have someone port and polish your head



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ss55

05-07-2014 06:36:52
50.81.112.224



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 Re: More ph out of farmall H in reply to Rustyparts, 05-06-2014 19:07:24  
If you are looking for a lot of horsepower, you might try asking this question on the "Tractor Pulling" forum, or search the archieves.

A C-175 engine out of a 350 should bolt into your H. I think the utility 350's ran at a higher rpm (2000?) and HP than the Farmall version.

At over 60 years old, your H has probably been overhauled before, so it may already have over sized pistons. It wouldn't hurt to check the cam lobes and have them reground to specification. You might be able to have the cam re-ground to 350 utility specs and then change your governor spring and re-curve the distributor to get 350 rpms. You would have to throttle back to keep your PTO speed at 540 rpm.

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D Slater

05-07-2014 04:59:04
184.14.195.235



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 Re: More ph out of farmall H in reply to Rustyparts, 05-06-2014 19:07:24  
If sticking with the same block, some options. See if the H block bore is good enough to fit 3-9/16 pistons form a overbore SH or standard bore 300 engine with filler rings in the counter bore. Use the 300, 350 head gasket. Bore the block about 1/16 and put 3-5/8 dia. 350 pistons in. Bore H block about 1/8 bigger and use SH sleeves. Bore H about 3/16 bigger and use 300 and 350 3-5/8 piston and sleeve set. Depending on the block, some may run into trouble with the last two options.

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dej(Jed)

05-07-2014 04:47:26
141.189.113.1



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 Re: More ph out of farmall H in reply to Rustyparts, 05-06-2014 19:07:24  
Quoting Removed, click Modern View to see

You can get more HP out of an H by removing the radiator cap and driving an M under the cap.



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ALMoyer

05-07-2014 06:05:28
96.245.160.159



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 Re: More ph out of farmall H in reply to dej(Jed), 05-07-2014 04:47:26  
Jed, Liked your resposnse, made me chuckle



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mkirsch

05-07-2014 04:10:23
65.199.189.6



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 Re: More ph out of farmall H in reply to Rustyparts, 05-06-2014 19:07:24  
Cover it with lime.

Oh you meant HP?

You will get a little more, probably a LOT more, just by overhauling the engine, period. It's definitely way-way down on power now.

Most of your rebuild kits are overbore kits that will bring you up to, I think, 164 CID. I'm not sure you can even purchase a stock bore kit for an H in this day and age.

You don't need "fire dome" or "fire crater" pistons specifically. Any "stepped head" style piston will do. Like:

http://www.yesterdaystractors.com/Farmall-H_Basic-Engine-Overhaul-Kit-Less-Bearings-C152-Gas-Stepped-Head-Pistons_BEKH1156ALCB.html

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Rusty parts

05-07-2014 15:15:18
198.228.228.166



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 Re: More ph out of farmall H in reply to mkirsch, 05-07-2014 04:10:23  
Thank you all for the valuable information



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steve_in_mo

05-07-2014 11:06:21
168.166.54.11



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 Re: More ph out of farmall H in reply to mkirsch, 05-07-2014 04:10:23  
A dyslexic walks into a bra......



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PretendFarmer

05-06-2014 20:21:11
66.87.124.64



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 Re: More ph out of farmall H in reply to DeltaRed, 05-06-2014 19:07:24  
You can put 300 sleeves and pistons in.



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MtMan

05-06-2014 19:37:37
50.32.103.88



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 Re: More ph out of farmall H in reply to Rustyparts, 05-06-2014 19:07:24  
I know you can put what is called fire dome pistons in your old engine and it will raise the HP quite a bit.



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