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-   -   Merc 520/ 540 / 565 General Info and Power numbers (https://www.offshoreonly.com/forums/general-q/374688-merc-520-540-565-general-info-power-numbers.html)

DRAG 02-06-2022 01:37 PM

This doesn't add much value to the post in terms of info, but here's a 565 on the dyno at Mercury Racing. I always zoom in on people's dyno screens :) No luck here.

cheech 02-06-2022 09:51 PM


Originally Posted by DRAG (Post 4820357)
I do build engines, but nothing like this and never plan to.

I see, your home page says it all. After you said that and Danville IN, that was my first assumption. Kudos to you. :drink:

cheech 02-07-2022 12:06 PM


Originally Posted by DRAG (Post 4820572)
This doesn't add much value to the post in terms of info, but here's a 565 on the dyno at Mercury Racing. I always zoom in on people's dyno screens :) No luck here.
(2) Facebook

Why does this site obliterate the videos?
Well once quoted the link showed. Anyhow, WTF

SB 02-07-2022 01:09 PM

His link works for me. Not a whole lot to thr vid as he mentioned, but I guess better than nothing. :)

cheech 02-07-2022 03:28 PM


Originally Posted by SB (Post 4820706)
His link works for me. Not a whole lot to thr vid as he mentioned, but I guess better than nothing. :)

Yeah FWIW, it's on my end.
At home on PC last night, Firefox browser, video shows. Didn't have time to watch.
Today at work on PC, Firefox browser, video doesn't show.
Now on same PC, Edge browser, video shows.

DRAG 02-07-2022 04:50 PM

Funny thing when I post to this site from my phone, it botches the wording badly. I read what I'm going to post carefully because it has bit me so many times....then I post it and its missing characters and correcting words. It drives me nuts.

Thank link to the video shows fine for me on my PC, but doesn't show on my phone.

DRAG 02-09-2022 11:06 AM

Not the rod I was hoping for, but certainly up for the task Mercury designed this engine for.

For clarification this is the 520/540 rod.
Looks like a Scat Pro Comp (or later called Pro Stock) 4340 I-Beam. It does have an ARP 2000. I dunno what they will hold as I’ve never used a rod like that…maybe 750?




https://cimg6.ibsrv.net/gimg/www.off...97c7c8934.jpeg

JaniH 02-09-2022 12:06 PM


Originally Posted by DRAG (Post 4820953)
Not the rod I was hoping for, but certainly up for the task Mercury designed this engine for.

For clarification this is the 520/540 rod.
Looks like a Scat Pro Comp (or later called Pro Stock) 4340 I-Beam. It does have an ARP 2000. I dunno what they will hold as I’ve never used a rod like that…maybe 750?




https://cimg6.ibsrv.net/gimg/www.off...97c7c8934.jpeg

What rod? cant take my eyes of the cylinder head!

cheech 02-09-2022 01:59 PM

That's what you got when you ordered the Merc part number?

F-2 Speedy 02-09-2022 03:19 PM

Id rather have a GM dimple than that thing............:angry-smiley-038:


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