525sc
03-27-2019 | 08:14 PM
#1
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From: Ohio
525sc
Here’s what I got, a set of 525sc’s, one rebuilt 30 hours ago, other with a rebuilt blower. Stock heads were heavily ported.
Want to kick them up, chillers abd pulleys for sure. I keep reading on converting to roller cams, what camis everyone putting in these?
Thinking pull them apart, check out, add a little bit and then not worry about them (I guess that’s everyones goal haha!)
Want to kick them up, chillers abd pulleys for sure. I keep reading on converting to roller cams, what camis everyone putting in these?
Thinking pull them apart, check out, add a little bit and then not worry about them (I guess that’s everyones goal haha!)
03-27-2019 | 09:13 PM
#3
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From: Ohio
03-28-2019 | 01:54 AM
#5
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From: Omaha/LOTO
I also went with a Crane 731 when I did the top end on my old 525SC. I ran about 7.5# of boost with no chiller.
Finding smaller pulleys to fit the Merc 177 splined shafts is nearly impossible anymore.
Finding smaller pulleys to fit the Merc 177 splined shafts is nearly impossible anymore.
03-29-2019 | 09:24 AM
#9
"Unregistered Gun"
Joined: Dec 2005
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From: Paducah, Ky
Maybe check with The Blower Shop!
How much horsepower could you make out of the 525SC before changing to a bigger SC, could 700 hp be capable out of the 177 with the right heads, valvetrain, and pistons? I have also wondered if anyone has ever converted over to an EFI setup? Reason I ask is I have a pair of 525SC in my boat, I keep getting the bug to have a pair of 700-725 HP engines. I like the idea of keeping the 177 setup and improving it, but I also keep looking at switching to a Whipple EFI setup with good heads and a strong rotating assembly.
How much horsepower could you make out of the 525SC before changing to a bigger SC, could 700 hp be capable out of the 177 with the right heads, valvetrain, and pistons? I have also wondered if anyone has ever converted over to an EFI setup? Reason I ask is I have a pair of 525SC in my boat, I keep getting the bug to have a pair of 700-725 HP engines. I like the idea of keeping the 177 setup and improving it, but I also keep looking at switching to a Whipple EFI setup with good heads and a strong rotating assembly.
