$625 for a Scat 4.250" crank and Scat 4340 rod upgrade over the base price. Last 445 I did with the Survival Motorsports heads, RPM intake, and a hydraulic roller made 530 hp and 580 lb-ft.
I may just use the 390 and put it in this:
I spent Saturday riding around the mall with my 3 year old daughter....at least the people behind me wouldn't be laughing if I had a V8 in that dog instead of a battery.