simpson8

No I'm not sure. That was just what the seller told me. Just did some research and I believe there ssm 3 or 3a due to the x dimension requirement on the 357. I don't. know how to post photos on here.

MILD THUNDER

iTrader: (3)

Sounds like the old 575 merc that came with the dominator carb, solid flat tappet cam, stellings headers, and either the ssm 3 or ssm 4 drive at the time.

The 3 and 3a drives look more like a standard outdrive. The 4 and 5 is shorter, no cavitation plate. Post pics and i can prob tell you what you are looking at.

simpson8

Ill try and post photos later. The old solid lifter 575hp Mercs have 300hours on them. How much maintenance will they require when running them in moderation. Valve lash adjustment every how many hours?

SB

iTrader: (1)

This is one of the few threads I can say this...Be careful what oil you use !!!

Rambocj7

Is that the boat on kijiji for sale (canada)? If so, those are ssm3 drives for sure. I'm not sure about the motors, no pics and not much information in the ad. If the interior is decent, motors check out, then it's a pretty good deal to me! Says the drives were just rebuilt.

later

there were several 357's that had that power and drive #3's boat ran right at 80

later

Rambocj7

This guy says it runs 75. Blower hatches that say 700hp (but I don't think it's blown). I would have expected more from 700 hp but maybe not. Im not familiar with that hull and what it can run.

Full Force

iTrader: (5)

If true 700 hp 75 is about right.

jeff32

My 357 with trs and 485 hp ran 62-64
I doubt they would run 80 with 575! Even 75 is high imo
My guess would be more high 60's very low 70's
But thats just my guess could be wrong!

bunky1957

1989 Formula brochure says 72 mph with 575s. I've got 540's in mine with bravos and I've seen 72.