# RB20/25 Swap into S13 chassis
**URL:** https://forums.speedlife.net/t/rb20-25-swap-into-s13-chassis/142513
**Category:** Canada Nissan Automotive
**Created:** [May 13, 2006, 11:09pm UTC](https://forums.speedlife.net/t/rb20-25-swap-into-s13-chassis/142513 "2006-05-13T23:09:51Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@Speed\_Dreams](https://forums.speedlife.net/u/Speed_Dreams)
#### Post date: [May 13, 2006, 11:09pm UTC](https://forums.speedlife.net/t/rb20-25-swap-into-s13-chassis/142513/1 "2006-05-13T23:09:51Z")
Does anyone have any advice on where i could find some info on this swap? like that needs to be done and what additional parts and fabrication i need? this would be Going from a Swapped in SR20 to a Hopefully RB25
Thanks guys
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### Author:  [@CA18DET-180SX](https://forums.speedlife.net/u/CA18DET-180SX)
#### Post date: [May 14, 2006, 12:36am UTC](https://forums.speedlife.net/t/rb20-25-swap-into-s13-chassis/142513/2 "2006-05-14T00:36:48Z")
Autodream would be able to fill you in.
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### Author:  [@canadianskyline](https://forums.speedlife.net/u/canadianskyline)
#### Post date: [May 14, 2006, 12:41am UTC](https://forums.speedlife.net/t/rb20-25-swap-into-s13-chassis/142513/3 "2006-05-14T00:41:50Z")
You need either new motor mounts, or a cefiro crossmember, and the full wiring harness. Other than that, any competent mechanic can figure out the wiring, just make sure you get full harness, ecm, maf, and all the sensors for the motor. Change your timing belt while the motor is out too!!
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### Author:  [@imported\_RPS131](https://forums.speedlife.net/u/imported_RPS131)
#### Post date: [May 14, 2006, 12:47am UTC](https://forums.speedlife.net/t/rb20-25-swap-into-s13-chassis/142513/4 "2006-05-14T00:47:13Z")
Since I’'m currently doing that swap myself, I can help you out. I went with the Cefiro crossmember. (or so it would seem)
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### Author:  [@Speed\_Dreams](https://forums.speedlife.net/u/Speed_Dreams)
#### Post date: [May 14, 2006, 8:26am UTC](https://forums.speedlife.net/t/rb20-25-swap-into-s13-chassis/142513/5 "2006-05-14T08:26:02Z")
i thought there was more work involved if you used the cefiro cross member? doesn’t that move the motor back and have to change the drive shaft?
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### Author:  [@1mns13](https://forums.speedlife.net/u/1mns13)
#### Post date: [May 15, 2006, 5:42am UTC](https://forums.speedlife.net/t/rb20-25-swap-into-s13-chassis/142513/6 "2006-05-15T05:42:35Z")
> [@Speed\_Dreams](#):
>
> i thought there was more work involved if you used the cefiro cross member? doesn’t that move the motor back and have to change the drive shaft?
I was told Cefiro crossmember was the easiest as well.