the scorpios had 2.0 16v dohcs. and the Galaxy also had a 2.3 16 dohc (150 BHP).

Not alot of effort went into tuning these as they were expensive and heavy to tune, So people stayed with the pinto.

You need a forklift truck to lift up the flywheel on these lol, they are foooooking huge.
The closest match for these engines is obviously the rs2000.
I never learnt the differences between them though i think it was higher comporession and slightly better flowed head. i went pinto in the end.