I've just acquired a WWI GPW, which currently has a flathead six H series engine. I haven't tried to fire it off yet, but I do know it turns over without any problem. I have access to a 4.3 liter engine and drivetrain out of a 1986 S-10 blazer and a 350 ci engine and drivetrain out of a 1984 Suburban. Both of these drivetrains are free to me. Basically, I can use whatever I want out of both the scrap vehicles including frames.

So, do I keep the flathead from 1948 or consider shortening a frame and putting the GPW body on one of the other vehicle frames and drivetrain?