WAY back in the 1970's we would "repurpose" two-stroke bike engines from our wrecks into shifter carts.
They were easily enough weight and horsepower to kill you, quick.
(I literally would go through a Yamaha RD 400 every month during one summer. crashed or seized)
They were $1100 tagged and out the door at Cycle Works for those of us that had race sponsorship, $1,300
retail.
Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.