Go Back  Offshoreonly.com > Owners Forum > Formula
353 Fastech N/A or Blowers >

353 Fastech N/A or Blowers

Notices
Formula

353 Fastech N/A or Blowers

Thread Tools
 
Old 08-15-2019 | 04:19 AM
  #21  
Registered
15 Year Member
 
Joined: Jan 2007
Posts: 409
Likes: 54
From: Palm City, Fl
Default

I agree with Snap above. I don't see how 600 hp make it a 90 mph boat. Unless you put boxes and shorties on..

I run mid 90''s with the Whipples (750-780 hp) and nose cones on Bravos.
Apexwarrior is offline  
Reply
Old 08-15-2019 | 04:59 AM
  #22  
Thread Starter
Registered
10 Year Member
 
Joined: Feb 2016
Posts: 227
Likes: 20
From: MA
Default

Originally Posted by Apexwarrior
I agree with Snap above. I don't see how 600 hp make it a 90 mph boat. Unless you put boxes and shorties on..

I run mid 90''s with the Whipples (750-780 hp) and nose cones on Bravos.
As stated above. I’m currently running 83mph @5300 rpms. I’d like to think I’d gain 7+mph by building 600hp a side. That would put me at an honest 88mph ballpark.
Mtb_05 is offline  
Reply
Old 08-15-2019 | 12:04 PM
  #23  
Registered
15 Year Member
 
Joined: Aug 2010
Posts: 2,227
Likes: 547
From: Cape Coral FL
Default

I took a 502mag MPI and added some Edelbrock heads and a cam and got 567hp out of it. Pretty much by upgrading your heads and camshaft, you should be able to get 600hp. I have a proven 700hp 540 EFI build recipe if you are interested, but the only piece you would be reusing is your blocks and would probably spend another 30K on parts.
snapmorgan is offline  
Reply
Old 08-15-2019 | 12:29 PM
  #24  
Thread Starter
Registered
10 Year Member
 
Joined: Feb 2016
Posts: 227
Likes: 20
From: MA
Default

Originally Posted by snapmorgan
I took a 502mag MPI and added some Edelbrock heads and a cam and got 567hp out of it. Pretty much by upgrading your heads and camshaft, you should be able to get 600hp. I have a proven 700hp 540 EFI build recipe if you are interested, but the only piece you would be reusing is your blocks and would probably spend another 30K on parts.

Does it have to be converted to EFI in order for your recipe to be achieved?
Mtb_05 is offline  
Reply
Old 08-16-2019 | 10:17 AM
  #25  
Registered
15 Year Member
 
Joined: Aug 2010
Posts: 2,227
Likes: 547
From: Cape Coral FL
Default

I am sure it would make the same power with carbs, but I have no idea if it would idle good enough for docking
snapmorgan is offline  
Reply
Old 08-17-2019 | 07:25 AM
  #26  
Registered
10 Year Member
 
Joined: Aug 2013
Posts: 479
Likes: 20
From: Lake St. Clair, MI
Default

Originally Posted by Mtb_05


Thank jwurl. I’ve been told stick bravos are good to 600hp. Like you said roll on the throttle and throttle off if you happen to exit the water. I’m running labbed 4 blades now. Not as much of a bite as 5 blades. Now to find the right builder on the east coast.
A friend ran 5 blades on his 353 with 525's and boxes - snapped many drives. Moved to 4 blades and stopped the carnage.
snowrunner is offline  
Reply
Old 08-17-2019 | 09:16 PM
  #27  
offthefront's Avatar
Registered
20 Year Member
 
Joined: Feb 2004
Posts: 4,909
Likes: 9
From: Northeast,Fla
Default

Originally Posted by snowrunner
A friend ran 5 blades on his 353 with 525's and boxes - snapped many drives. Moved to 4 blades and stopped the carnage.
Slip is your friend.....
offthefront is offline  
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



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

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.