Hey guys, I am new to the forum so i hope i found the right place. I have a few questions/concerns about my 1979 g30 chevy motorhome. It has a 400 small block in it and a 400 turbo transmission. basically at 67000 miles driving it out to a wedding yesterday the motor decided to let go. punched about 3 holes in the oil pan and there was coolant on the ground as well so im assuming the block has been damaged as well. havent had time to look all that thouroughly. My question is due to my lack of knowledge in this area, will i be able to pick that 400 out and drop a used 454 in it. will i need a different transmission and will the engine need to be altered for different rpm and torque. Another question. Is the 454 a good or bad swap choice. what other options are ther to drop in. i know there is not much room in that doghouse! Thanks in advance for any feedback.

Last edited by Kinger9; June 18th 2017 3:25 pm.