96twodoor
Dark side of the moon
I guess its close enough to a 400 , pretty cool though (opps 1993 topkick)
http://www.mautofied.com/1993-GMC---Topkick_Full-Size-Trucks/listing/100379626/
http://www.mautofied.com/1993-GMC---Topkick_Full-Size-Trucks/listing/100379626/