I have a pdf from Mercury on the remanufactured 383 Scorpion rated at 400 h.p.
Does anyone out there know the specs on the 377 cu in. Scorpion which, I
believe, was considered a "Blue Motor?" I would love to know how the
components differ from the 320 h.p. 377 6.2 MPI and what horsepower the
377 Scorpion was rated.

4.00 bore 3.75 stroke


Will post more later when I get to my computer at home

It is rated at 377 hp. It's also a 6.2 L with a compression ratio of 9:1. The camshaft is 222/230 .510/.530 114.
Eddie

It's got a lot better intake than the 6.2 also.

The intake lower half is a tunnel ram style with port injectors. Throttle body was moved to the right rear (as you face the front of the motor). It was based on the pre vortec 1995 Mag EFI/MP manifold except that induction system had the front mounted two stage throttle body.

So the 377 Scorpion was rated at 377HP? I always thought it was rated at 350HP. Learned something new today!

My 383 is rated at 350 hp. It is called Stroker by Merc.

[ATTACH=CONFIG]511948[/ATTACH][ATTACH=CONFIG]511948[/ATTACH]

Why don't you post a screen shot of the other tab that you have open on your ipad.......the one that's titled "beat that pu$$y" LOL

Bahahahahhaha!!!!!!!