# u13 vs s13 sr20det longblock

**URL:** <https://forums.speedlife.net/t/u13-vs-s13-sr20det-longblock/210595>\
**Category:** SON240sx Automotive\
**Created:** [March 28, 2011, 2:07pm UTC](https://forums.speedlife.net/t/u13-vs-s13-sr20det-longblock/210595 "2011-03-28T14:07:45Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Dutchy](https://avatars.discourse-cdn.com/v4/letter/d/65b543/32.png) [@Dutchy](https://forums.speedlife.net/u/Dutchy)\
**Post date:** [March 28, 2011, 2:07pm UTC](https://forums.speedlife.net/t/u13-vs-s13-sr20det-longblock/210595/1 "2011-03-28T14:07:45Z")

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Was wondering if anyone had any insight on how comparable the U13 sr20det and S13 sr20det are?

Basically my car is already swapped, and is running, but it spun a bearing, would I be able to use the longblock from the U13 sr20 to replace my s13 sr20, I can swap over all the manifolds, trans, engine mounts, accessories. Basically anything that would be s13 sr20 specific I already have. Just want to know if the block/head is the same or whats different?

I’ve tried searching but haven’t found any specific comparison.

Any input is appreciated.

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**Author:** ![gandza](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gandza/32/5901_2.png) [@gandza](https://forums.speedlife.net/u/gandza)\
**Post date:** [March 28, 2011, 6:44pm UTC](https://forums.speedlife.net/t/u13-vs-s13-sr20det-longblock/210595/2 "2011-03-28T18:44:47Z")

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i have bearings if you want!!!  
clevite\*

---------- Post added at 09:44 PM ---------- Previous post was at 09:44 PM ----------

pm me

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**Author:** ![Dutchy](https://avatars.discourse-cdn.com/v4/letter/d/65b543/32.png) [@Dutchy](https://forums.speedlife.net/u/Dutchy)\
**Post date:** [March 29, 2011, 11:40am UTC](https://forums.speedlife.net/t/u13-vs-s13-sr20det-longblock/210595/3 "2011-03-29T11:40:19Z")

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> [@gandza](#):
>
> i have bearings if you want!!!  
> clevite\*
> 
> ---------- Post added at 09:44 PM ---------- Previous post was at 09:44 PM ----------
> 
> pm me

hey man, prefer to replace the whole bottom end right now, I’ll let you know if I decide to just do bearings.

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**Author:** ![gandza](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gandza/32/5901_2.png) [@gandza](https://forums.speedlife.net/u/gandza)\
**Post date:** [March 29, 2011, 7:17pm UTC](https://forums.speedlife.net/t/u13-vs-s13-sr20det-longblock/210595/4 "2011-03-29T19:17:04Z")

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well if you replace the whole bottom end you need bearings 😉 but yeah, let me know