ED-EF Swaps 1991 and older Civics, CRXs

91 dx swap to ex

Old 03-31-2007, 04:01 PM
Thread Starter
Join Date: Mar 2007
Posts: 1
Default 91 dx swap to ex

I have a 91 dx and i wanna swap it with an ex. what all would i need and can i keep the same transmition? my dad is a mechanic and wants to help but he's older and isn't as up to date with all the new tech. he's confident about it, i just need to know what we're in for...
Old 03-31-2007, 05:54 PM
Senior Member
Join Date: Nov 2005
Posts: 2,667
Default RE: 91 dx swap to ex

what ex?
Old 04-02-2007, 10:55 AM
Join Date: Jan 2007
Location: So Cal
Posts: 417
Default RE: 91 dx swap to ex

You should just swap to si and if you keep a sohc motor in it you can most likely use your tranny....if you have dpfi you have to wire it for mpfi
Old 04-02-2007, 04:16 PM
HCF Member
Join Date: Mar 2005
Location: NC
Posts: 1,801
Default RE: 91 dx swap to ex

ex=4dr civic with a d16a6 and a 4.0 final in the tranny..............basically a full si conversion with a slightly taller final. for a complete conversion you will have to do a mpfi conversion. it conssits of rewiring for 4 injectors instead of 2. although you can swap in the d16 and ex transmission and use your current manifolds and distributor.
Old 04-03-2007, 03:17 PM
Senior Member
Join Date: Sep 2005
Posts: 1,930
Default RE: 91 dx swap to ex

Just do a Z6 if you're going to all that trouble.
Related Topics
Thread Starter
Last Post
EG Swaps
05-16-2008 04:46 AM
EK Swaps
09-26-2006 05:33 PM
Header, Intake, & Exhaust
07-07-2006 03:17 PM
EK Swaps
02-26-2006 11:08 PM
Engine & Internal
06-08-2005 08:05 PM

Thread Tools
Search this Thread
Quick Reply: 91 dx swap to ex

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.