I'm certainly no expert, but DOHC for 4X4 use doesn't make much sense to me. It's great for street use, but I like low RPM torque. I used to have an FJ40 that would climb anything in low range idling at 600RPM (straight 6). The 3.0Ls I have now are not as good, but good enough for my uses.

The mechanic I've found here (OZ) has a pair of 6g72 24V heads. I figure more power if I can find the right donor engine.

89 3L V6 5spd SWB, Aisin Manual Hubs, 2 (suspension) seater Raider in Wheeler, OR