cavisco1

Yes there are advantages at these the lower RPM ranges. Most of the advantages are in the low RPM ranges. By electronically regulating the coil primary current, the HEI module assures a fully charged field in the coil across all normal operating RPMs allowing a hotter spark to the plug for each ignition event, without destructive overheating of the coil at low RPM. The coil primary current regulator circuit also imposes a current limit of 8 amps in the primary circuit to allow the use of HEI coils. It is designed to work with low resistance HEI coils and fire across wide plug gaps. The stock GM HEI coil has a primary resistance of 0.5 ohm. These are very hot coils. The original systems in 1975 were designed to reliably fire a .060" plug gap! I think it would probably be safe to open up the plug gap .040 on a flatty. As good as the MOPAR system was in it's day, I don't think it will live long with a 0.5 ohm coil. In summary, the HEI system, when matched to an HEI coil will deliver more energy (Joules) to your plugs across all rpms than the MOPAR system. It also eliminates the ballast resistor ( a common failure point in the MOPAR system). Google Freescale "MC3334 datasheet" for more detail on how it works.

There are several advantages of HEI over the Mopar module. Electronic regulation of primary coil current, greater availability in case of failure, no ballast resistor needed, designed to fire wider plug gaps and designed to work with high energy coils. Both the Mopar electronic distributor and GM HEI distributor use a reluctor pickup. The HEI module works as designed with either distributor. If you are going to the trouble of converting the distributor and reworking the wiring, it's a no-brainer to use the more advanced HEI module. This is a very common upgrade in the slant six world and is even popular with some in the Mopar V8 crowd. Cheap, reliable, easy to service, easily hidden and a big upgrade in performance. Keep an open mind and have a look here http://www.slantsix.org/forum/viewtopic.php?p=98527&highlight=#98527 and here http://www.slantsix.org/forum/viewtopic.php?p=98527&highlight=#98527 The Mopar electronic ignition is basically a transistor switch to replace the points; advanced for it's day, but the HEI module gives a hotter longer duration spark.

If you are going with electronic ignition you may as well use a GM HEI module and coil. The mopar electronic distributor will work just fine with the HEI module resulting in a hotter and longer duration spark. Some good reading over here; http://www.slantsix.org/forum/viewtopic.php?t=15779 at slantsix.org.

What model year Navara uses that style tank? The us version should be a Nissan Frontier.

I read on another site where someone used a Mitsubishi Montero power steering box on an old International. I looked up some pictures of the Mitsu box and it looks like a possibility, but who knows unless you can compare the 2 side by side. Scott.

Thanks GRAMPS1951. That is the one I remember seeing. Did you do the swap yourself? Any more details or photos? Did you have to cut the firewall? From the picture you posted it looks like a real clean swap. I assume you had to move the radiator forward and use an electric pusher fan. Where are you located? I'm near Columbia, SC Scott

I was surfing around recently and found a site where there was a photo of a Pilothouse with a 258 inline AMC engine installed. It looked like a nice clean install. Unfortunately I had some other things to deal with at the time and did not bookmark the page. Has anyone else seen this truck? Does anyone know of any good sites where a modern inline was installed in a PH? It might open up some nice alternatives to the V8 swaps some people do when their flathead is missing or hopeless to rebuild. Scott.

I seem to recall someone using the PCV valve from a 3.0L Mitsubishi engine. I believe that one is metal and threaded on one end. Scott.

Wow! I really like the color. What is that color? Looks like a color I've seen on on some late model Dodge SUVs and trucks. I see there are some shoulder belts hanging in the cab. Were the shoulder belts difficult to install? Scott