So I just picked up a 1991 B2600i 4x4 extra cab. Clean body and interior, new radiator and the motor has a blown head gasket; got it for $500. I just started tearing into the motor earlier today to put in a new head gasket. Gonna do a water pump while there. Do these heads warp often? Is there anything else that I should be looking for while the top end of this motor is opened up? Also, I have heard from a few different people that these motors have issues passing smog? Anybody had any experience with this?

Last question... Does anybody know what they HP rating on this motor is and how much the truck weighs?

Also, I found a company that makes baja style fenders (3 inch flares) for the front, fiberglass. Has anybody ran these or done a baja style B series truck from the older body style. Please post pics if you have. Thanks!



Edit: I just went through and read a bunch of stuff on these motors, from my understanding since this is fuel injected this means it wasnt the mitsubushi motor?

 

The factory head is subject to warp from overheating, and the factory hp rating is 121. Check out your timing chain and tensioners while you're in there. It is a Mazda motor, the G6, made from 89-93, so good luck finding any performance upgrades.