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What are all the necessary upgrades and modifacations i must do to my 94' DOHC 4cyl to a 1.8 or 2.5 6cyl engine? Does anybody know exactly what to do?

Unless you feel like getting a GS as a parts car, just sell yoru RS and get a GS. Proven many times over its cheaper to buy a GS for the price of a swap from 4 to 6. <BR> <A HREF="http://www.geocities.com/MotorCity/Down ... o6swap.htm" TARGET=_blank>http://www.geocities.com/MotorCity/Down ... wap.htm</A> <P>that should help some.

i'd swap in a B6T or a BPT...much easier, from what i've read here....you'd have to change the mounts if you dropped in a v6, where the B6T will go right in

Hey I'm currently in the process of putting a JDM 2.5l into my '92 4cyl mx3 and let me tell you its alot of work. So far I've had to buy the engine, tranny, ecu, wireing harness, upgrade the suspension and change the location of the motor and tranny mounts. I have put in over $4,000 so far. But to me it's worth it. It's all up to you.

I was concidering A-Spec for the swap as well but I have researched it. It is a great deal they only charge $1789 US for the swap but I have also researched the BPT swap and CorkSport told me to goto <A HREF="http://www.rx7club.com/" TARGET=_blank>rx7club.com</A>goto the 2nd Gen forum and use the search feature for A-Spec. There are many negative comments about the shop that will make you really think twice about going there. Just a little advice for you. I personally see more potential with the BPT.