# Destroyed F20 rebuild **URL:** \ **Category:** Builds\ **Created:** [July 10, 2008, 4:15pm UTC](https://forums.speedlife.net/t/destroyed-f20-rebuild/51305 "2008-07-10T16:15:17Z")\ **Posts on this page:** 10\ **Page:** 2
**Author:** ![JayS](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jays/32/15375_2.png) [@JayS](https://forums.speedlife.net/u/JayS)\ **Post date:** [July 11, 2008, 6:33am UTC](https://forums.speedlife.net/t/destroyed-f20-rebuild/51305/21 "2008-07-11T06:33:31Z")
Little JB-Weld and some dremel action will fix that right up. On a serious note, :tup: for great carnage pics. ---
**Author:** ![Zong](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/zong/32/7580_2.png) [@Zong](https://forums.speedlife.net/u/Zong)\ **Post date:** [July 11, 2008, 6:44am UTC](https://forums.speedlife.net/t/destroyed-f20-rebuild/51305/22 "2008-07-11T06:44:13Z")
It had to have been a misshift right? ---
**Author:** ![LZ1](https://avatars.discourse-cdn.com/v4/letter/l/7ab992/32.png) [@LZ1](https://forums.speedlife.net/u/LZ1)\ **Post date:** [July 11, 2008, 6:45am UTC](https://forums.speedlife.net/t/destroyed-f20-rebuild/51305/23 "2008-07-11T06:45:22Z")
Skunk V2.0 ---
**Author:** ![justa4door](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/justa4door/32/7259_2.png) [@justa4door](https://forums.speedlife.net/u/justa4door)\ **Post date:** [July 11, 2008, 6:56am UTC](https://forums.speedlife.net/t/destroyed-f20-rebuild/51305/24 "2008-07-11T06:56:23Z")
[www.theoldone.com](http://www.theoldone.com) … has the info on how to fill quench areas but its not working right now… i can find it in the search but not get to the site ---
**Author:** ![HotRodKid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/hotrodkid/32/7609_2.png) [@HotRodKid](https://forums.speedlife.net/u/HotRodKid)\ **Post date:** [July 11, 2008, 7:01am UTC](https://forums.speedlife.net/t/destroyed-f20-rebuild/51305/25 "2008-07-11T07:01:33Z")
> [@justa4door](#): > > no it could be fixed …i dont know what its called right now i will look and post link > > they would have to increase the metel in the head (quench area) and futher inprove the compression and combustion efficiency…this is why i said would need race gas… still looking for link 1: no it cant be fixed, not even for 8 times the cost of just buying a new head. your looking at a piece of aluminium thats been shattered in numerous spots. there are going to be cracks running multiple directions through the combustion chamber, the intake ports, the exhaust ports, and straight through into the coolant passages. finding / drilling / grinding / welding / grinding / machining each one of these cracks will take a massive amount of time, all @ $60 labor and adding material around the valves to increase quench area is just going to shroud the valves, which will reduce breathing ability, and said mods would have to be done to EVERY cylinder, adding more $60/hour labor sure the cylinders MIGHT be more efficient, but that would be canceled out by less airflow, so you make the same power for all your extra work, and one day the head cracks again . like after 3 heat cycles, and you have a cylinder head w/ $5k in mods that still winds up in the recycle bin ---
**Author:** ![Oasis24-7](https://avatars.discourse-cdn.com/v4/letter/o/c89c15/32.png) [@Oasis24-7](https://forums.speedlife.net/u/Oasis24-7)\ **Post date:** [July 11, 2008, 9:11pm UTC](https://forums.speedlife.net/t/destroyed-f20-rebuild/51305/26 "2008-07-11T21:11:03Z")
props those pics make me feel better about mine lol good luck and remember “shit it happens” ---
**Author:** ![Willybeen](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/willybeen/32/7351_2.png) [@Willybeen](https://forums.speedlife.net/u/Willybeen)\ **Post date:** [July 11, 2008, 9:17pm UTC](https://forums.speedlife.net/t/destroyed-f20-rebuild/51305/27 "2008-07-11T21:17:57Z")
that sucks ☹ ---
**Author:** ![ILCisDEAD](https://avatars.discourse-cdn.com/v4/letter/i/a87d85/32.png) [@ILCisDEAD](https://forums.speedlife.net/u/ILCisDEAD)\ **Post date:** [July 11, 2008, 9:30pm UTC](https://forums.speedlife.net/t/destroyed-f20-rebuild/51305/28 "2008-07-11T21:30:08Z")
![http://www.acsu.buffalo.edu/~drcline2/pic/DSC_0438%20copy.jpg](http://www.acsu.buffalo.edu/~drcline2/pic/DSC_0438%20copy.jpg) ---
**Author:** ![sweet89s13](https://avatars.discourse-cdn.com/v4/letter/s/87869e/32.png) [@sweet89s13](https://forums.speedlife.net/u/sweet89s13)\ **Post date:** [July 12, 2008, 9:10am UTC](https://forums.speedlife.net/t/destroyed-f20-rebuild/51305/29 "2008-07-12T09:10:25Z")
wicked! best thing ive seen this year ---
**Author:** ![rage87](https://avatars.discourse-cdn.com/v4/letter/r/9e8a1a/32.png) [@rage87](https://forums.speedlife.net/u/rage87)\ **Post date:** [July 12, 2008, 8:58pm UTC](https://forums.speedlife.net/t/destroyed-f20-rebuild/51305/30 "2008-07-12T20:58:11Z")
I suppose it’s not surprising that happened from revving 3800 rpms above red line on a stock head. But I’m sure you’ve been flamed for that already so I won’t bother. [Previous page](https://forums.speedlife.net/t/destroyed-f20-rebuild/51305.md?page=1)