I'll bet!!! to jump from a slant six to a 440 bb, wow that would be a big difference. My Aspen R/T is running a 450 hp small block 360 with a 4 speed, tons of fun!!! puts you right back in your seat and you can do the whole tape a $100.00 to the dash and dare the passenger if they can reach it they can have it bit.I had a 77 Aspen I put a 440 & an A-833 in. A real sleeper after a 225 & a 3spd.
I don't even have the 8-3/4 rear in it yet with the 3.91's that I want to run. I think it's only got 3.23 in it now.