Go Back  Offshoreonly.com > Technical > General Q & A
Mercruiser HP450 >

Mercruiser HP450

Notices

Mercruiser HP450

Thread Tools
 
Old 01-23-2003, 07:54 PM
  #1  
Registered
Thread Starter
 
Goboat's Avatar
 
Join Date: Mar 2002
Location: Lucas, TX
Posts: 20
Likes: 0
Received 0 Likes on 0 Posts
Question Mercruiser HP450

What do I need to know about a Mercruiser HP 450??? Had not heard of one till the other day.
Goboat is offline  
Old 01-23-2003, 08:22 PM
  #2  
Registered
Thread Starter
 
Goboat's Avatar
 
Join Date: Mar 2002
Location: Lucas, TX
Posts: 20
Likes: 0
Received 0 Likes on 0 Posts
Default Hmmmm...

Thanx Formulafastech.

The guy at the Avanti manufacturer down the road says he has one that is a "2000 model year with 128 hrs." Someone is buying the boat and wanting to put his own motor in it. I was thinking about swaping my 502 Mag MPI with 329 hours on it for the HP450 instead of doing a refresh on the 502. What would you do???
Goboat is offline  
Old 01-23-2003, 08:25 PM
  #3  
Registered
Thread Starter
 
Goboat's Avatar
 
Join Date: Mar 2002
Location: Lucas, TX
Posts: 20
Likes: 0
Received 0 Likes on 0 Posts
Default On another note.

What would be the best way to pump a 502 Mag MPI (all stock) up to about 450 hp from the 415 hp rating????

Headers??? reprogram ECM???

I don't want to get crazy or spend a bunch of bucks. Just want a little more performance while retaining reliability.
Goboat is offline  
Old 01-23-2003, 09:05 PM
  #4  
blown1500
Guest
 
Posts: n/a
Default

Headers, ECM, cam.
That should do it. Careful on the cam.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Big Block Billy
General Q & A
9
12-12-2009 06:35 PM
Bottoms Up
General Boating Discussion
2
01-30-2007 10:51 AM
buck183
General Q & A
5
05-17-2004 10:37 AM
HiPerf2000
General Boating Discussion
4
04-24-2003 03:58 PM
Freddie
General Q & A
9
11-30-2002 09:58 AM

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



Quick Reply: Mercruiser HP450


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.