Why a old pinto or essex v6? Do you know how much those essex motos weigh
For the money you will spend on a Burtons Pinto to get 160 bhp you could easily buy a 2ltr zetec (£200), some bike throttle bodies (£100) and a SECS ecu (£500?) and end up with a much more modern and responsive engine making 180bhp
If you do a bit of digging on the net you will find that the zetec can be easily made to bolt up with a type 9 using Ford parts