Go Back  Offshoreonly.com > General Discussion > General Boating Discussion
What is the best thing to do with tired 575's? >

What is the best thing to do with tired 575's?

Notices

What is the best thing to do with tired 575's?

Thread Tools
 
Old 11-13-2007, 07:45 PM
  #1  
Registered
Thread Starter
 
Join Date: Jun 2005
Posts: 11,654
Received 885 Likes on 480 Posts
Default What is the best thing to do with tired 575's?

I got a friend with a 42 Lightning with "tired" 575's trying to figure out what to do with them. He has never been thrilled with them and is at a crossroads whether to rebuild or replace. Any ideas?
Jupiter Sunsation is offline  
Old 11-13-2007, 07:50 PM
  #2  
Geronimo36
Gold Member
 
Panther's Avatar
 
Join Date: Sep 2002
Location: Elkton, MD
Posts: 11,972
Received 131 Likes on 36 Posts
Default

I'd rebuild but junk the blowers and get an 8-71 or Whipple!
Panther is offline  
Old 11-13-2007, 07:52 PM
  #3  
Driver-441
Racer
 
TeamSaris's Avatar
 
Join Date: Aug 2004
Location: Lake George
Posts: 11,846
Received 1,070 Likes on 283 Posts
Default

I agree with Panther.
TeamSaris is offline  
Old 11-13-2007, 08:23 PM
  #4  
BL6
Registered
 
Join Date: Oct 2005
Location: SW Mich / Cape Coral
Posts: 488
Received 29 Likes on 11 Posts
Default

I'd suggest selling them to some poor unfortunate soul who currently has, oh I don't know, say 496's. And start fresh!

And yea, I'd be open to parting with my 496's.
BL6 is offline  
Old 11-13-2007, 08:25 PM
  #5  
Registered
 
JCPERF's Avatar
 
Join Date: Jul 2004
Location: Long Island,New York
Posts: 8,908
Received 9 Likes on 9 Posts
Default

Originally Posted by Jupiter Sunsation
I got a friend with a 42 Lightning with "tired" 575's trying to figure out what to do with them. He has never been thrilled with them and is at a crossroads whether to rebuild or replace. Any ideas?
You can upgrade them to 700s with the majority of the parts.Even those blowers.
JCPERF is offline  
Old 11-13-2007, 08:28 PM
  #6  
Platinum Member
Platinum Member
 
Quiet Storm's Avatar
 
Join Date: Apr 2002
Location: Lake Michigan
Posts: 1,683
Likes: 0
Received 0 Likes on 0 Posts
Default

I had mine rebuilt and loved the outcome. Bored them out to 509 blocks. Went with a hydraulic cam and Morel hydraulic lifters. Changed the fireing order. Reworked the heads. Went with MSD ignition. Arizona Speed reprogramed the ECM's. The Blower Shop rebuilt the blowers. They can make the blowers stronger but I wouldn't run them for much more than 200 hours before rebuilding, depending on how you drive it. I picked up 150 hp without intercoolers. I could have got more hp out of them with the intercoolers but wanted reliability.

If you look up 10X he can tell you more about them. He helped rebuild them.
Attached Thumbnails What is the best thing to do with tired 575's?-sonic-motors-004.jpg  
Quiet Storm is offline  
Old 11-13-2007, 08:29 PM
  #7  
Registered
iTrader: (3)
 
tomtbone1993's Avatar
 
Join Date: Sep 2003
Location: LAKE CONROE, TX
Posts: 15,491
Likes: 0
Received 4 Likes on 1 Post
Default

Originally Posted by JCPERF
You can upgrade them to 700s with the majority of the parts.Even those blowers.
can you go more into detail.....Have a buddy looking at a boat with merc 575's
tomtbone1993 is offline  
Old 11-13-2007, 09:05 PM
  #8  
Registered
 
JCPERF's Avatar
 
Join Date: Jul 2004
Location: Long Island,New York
Posts: 8,908
Received 9 Likes on 9 Posts
Default

Originally Posted by tomtbone1993
can you go more into detail.....Have a buddy looking at a boat with merc 575's
Cam,head work, more boost for ex.
JCPERF is offline  
Old 11-13-2007, 09:14 PM
  #9  
'05 Concept SF23
VIP Member
 
Join Date: May 2002
Location: Gladeville, TN
Posts: 1,722
Likes: 0
Received 2 Likes on 1 Post
Default

Call Eddie Young @ 615 216 7449. He is in middle TN.
f311fr1 is offline  
Old 11-13-2007, 09:44 PM
  #10  
Registered
 
FeverMike's Avatar
 
Join Date: Jan 2001
Location: Tampa
Posts: 6,665
Received 9 Likes on 5 Posts
Default

What hours are on these 575's?
FeverMike is offline  


Quick Reply: What is the best thing to do with tired 575's?


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.