I went out of the relm of nissan, but even so mine fit pretty well. I got a JTR conversion kit, and it was really pretty painless, unlike the scarab setups back in the day this kit set the motor back to about an inch away from the firewall, and right now if I moved my battery to the back I'ld have a 50/50 weight ratio. By the way how heavy is a Titan motor? the TPI was only a 100lbs heavier, which didn't screw with the handling of the car too much, but that is somthing to think about, right now it's stock motor, I really want an LS1, but probably keep this setup for a while...and already have a twin turbo setup in the works. Best of luck!
