Originally Posted by Valkyrie
What needs to be modified?
What happens to A/C and P/S?
Are the wiring mods and gauge mods a lot of work?
Do you need to upgrade the rear end if it's an NA base car?
First of all, don't use the Hinson kit, use Ronin Speedworks.
Pretty much everything needs to be modified...fuel delivery, exhaust, electrical, cooling.
Both AC and PS can be retained if desired.
The wiring needed to just get running is actually quite minimal, it gets more involved if you want the new ECU to control things like the efans, etc.
All your sub-gauges (fuel level, oil pressure, water temp, voltage) will work as before (assuming you reuse the stock sending units).
The tach signal will require "conditioning" to read the new coils properly (Digital Dakota is a common fix).
The speedo will need to be replaced altogether as the common trannys (i.e., "T-56) have no provision for a cable drive. Certain Honda electronic speedometers will fit the stock cluster and work (again, Digital Dakota).
You will almost certainly need to upgrade the differential.
A T2 diff will work much better but kits are now available to install a Cobra diff.
This may not be strictly necessary but does provide a better range of gearing options because the standard 4.10 is way too short for the new engine.
You'll probably want to be in the 3.55 range to make first/second gear even marginally useful.
Mounting the engine/trans is the work of a morning (especially in the FC, which retains the stock subframe), it's everything else that takes the time.
Go to norotors
for a v-8 swap dedicated forum.