# 6.0 diesel heads

**URL:** <https://community.cartalk.com/t/6-0-diesel-heads/103002>\
**Category:** Maintenance/Repairs\
**Tags:** f250, ford\
**Created:** [April 15, 2017, 12:00am UTC](https://community.cartalk.com/t/6-0-diesel-heads/103002 "2017-04-15T00:00:03Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Bllear72](https://avatars.discourse-cdn.com/v4/letter/b/f07891/32.png) [@Bllear72](https://community.cartalk.com/u/Bllear72)\
**Post date:** [April 15, 2017, 12:00am UTC](https://community.cartalk.com/t/6-0-diesel-heads/103002/1 "2017-04-15T00:00:03Z")

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\<img

Can anyone tell me if the head is still usable with that hairline crack  
src="//cdck-file-uploads-global.s3.dualstack.us-west-2.amazonaws.com/cartalk/original/2X/9/95eaae60c4ce95434966fb42da259cb4f5c6ee1a.JPG" width=“375” height=“500”\>

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [April 15, 2017, 12:03am UTC](https://community.cartalk.com/t/6-0-diesel-heads/103002/2 "2017-04-15T00:03:01Z")

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If there’s a crack in a gas/diesel engine head, the head is shot.

Tester

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**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [April 15, 2017, 12:11pm UTC](https://community.cartalk.com/t/6-0-diesel-heads/103002/3 "2017-04-15T12:11:03Z")

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@Tester is right. Even though we can’t see the picture, any crack must be fixed or replaced. There are shops that can weld cylinder heads and re-machine them.

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**Author:** ![bing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bing/32/4619_2.png) [@bing](https://community.cartalk.com/u/bing)\
**Post date:** [April 15, 2017, 8:49pm UTC](https://community.cartalk.com/t/6-0-diesel-heads/103002/4 "2017-04-15T20:49:18Z")

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The few times I had to have head gaskets on my diesel, the heads were always sent to the machine shop for magna fluxing to determine if there were any hidden cracks. If so in the trash.