Need cylinder head recommendation

Bgblock427

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M7040, L4240 and ZD1211
Jun 21, 2024
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Greetings, new to the forum.
I have a cracked head on my M4070 tractor and need a replacement. I see many different manufacturers with replacement heads available. Has anyone ordered a aftermarket head and have it not crack again?
are the head bolts torque to yield and do they need to be replaced?
 

Bgblock427

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M7040, L4240 and ZD1211
Jun 21, 2024
9
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1
Tennessee
Just to ad to the post,
it looks like kubota discontinued this head so no factory heads available.
 

Russell King

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Kumar brothers is the one that I have seen good reports on. They may sell complete and incomplete versions of heads so be careful about comparing the costs.
 

North Idaho Wolfman

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The head cracked from over heating.
So look at the cooling system completely.
The head bolts are reusable.
Get an OEM head gasket if available.
 
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GeoHorn

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I looked-up a M4070 on TractorData and it’s not listed. What year, etc. is it?
 

North Idaho Wolfman

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lugbolt

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I wonder how many V3307 heads I threw away? Along with mandatorily-damaged blocks and complete engines? Plenty of them. Had one at the house for years and nobody wanted it. I had it in my fox body mustang for a bit (never drove it) just for giggles. It actually fits. I wanted to but the 427 got done before I got to figuring out the trans and everything else so out it came, sat in the corner for, gosh, 5 years or so, was on marketplace for $200, and it just sat there. Went to scrap along with a bunch of other stuff.
 
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Bgblock427

New member

Equipment
M7040, L4240 and ZD1211
Jun 21, 2024
9
0
1
Tennessee
I wonder how many V3307 heads I threw away? Along with mandatorily-damaged blocks and complete engines? Plenty of them. Had one at the house for years and nobody wanted it. I had it in my fox body mustang for a bit (never drove it) just for giggles. It actually fits. I wanted to but the 427 got done before I got to figuring out the trans and everything else so out it came, sat in the corner for, gosh, 5 years or so, was on marketplace for $200, and it just sat there. Went to scrap along with a bunch of other stuff.
Always happens like that, no one needs one till they do. Ordered a complete head from amazon, its coming on a slow boat from China from what I can see.