Notices

496HO to 454 swap

Thread Tools
 
Old 02-08-2017 | 11:12 PM
  #1  
Thread Starter
Registered
 
Joined: Feb 2017
Posts: 2
Likes: 0
Default 496HO to 454 swap

Hey I have a 2004 24' aftershock tremor with a stock 496HO with about 175 hours and a bravo 1. With a 24 prop and about 4900 rpms I can do 65ish. The boat and trailer weigh 6300LBS. Anyways like everybody, I want to go faster but looked into it, and anything for this motor is expensive. It looks like getting raylar products would be my only option that I've seen.

I was wondering if I bought an old 454 and built it up to say 600hp, would be cheaper than building my 496. I'm hoping one or some of you can give me advice. Is it going to be a waste of time and I should just build up the 496? Also if I'm easy out of the hole, would I be ok with 600hp or close to it and a bravo 1? I go to lake Mohave and lake Havasu all the time and I'll never be close to the fastest, but I hate losing to a seadoo. I want to be close to 75-80

Thanks
MattBrewer1216 is offline  
Reply
Old 02-08-2017 | 11:24 PM
  #2  
Registered
 
Joined: Oct 2015
Posts: 1,244
Likes: 4
From: Lake George, NY
Default

Whipple
class6 is offline  
Reply
Old 02-08-2017 | 11:26 PM
  #3  
Thread Starter
Registered
 
Joined: Feb 2017
Posts: 2
Likes: 0
Default

Put a whipple on which motor? Looks like it's going to cost a small fortune to forge my 496
MattBrewer1216 is offline  
Reply
Old 02-08-2017 | 11:49 PM
  #4  
Registered
 
Joined: Oct 2015
Posts: 1,244
Likes: 4
From: Lake George, NY
Default

Put it on the 496. You won't hurt that motor. Stay at 5psi max and 5200rpms and you'll be good
class6 is offline  
Reply
Old 02-09-2017 | 05:37 AM
  #5  
VoodooRob's Avatar
VIP Member
10 Year Member
VIP Member
 
Joined: Jul 2011
Posts: 1,992
Likes: 48
From: Cleveland Ohio
Default

^^^^ and buy a back up drive, cheap enough to stay on the water
VoodooRob is offline  
Reply
Old 02-09-2017 | 05:52 AM
  #6  
Dave M's Avatar
Gold Member
Veteran: Navy
25 Year Member
Gold Member
 
Joined: Oct 2000
Posts: 5,664
Likes: 140
From: Hollywood, MD, USA
Default

I know this doesn't answer your question but I will offer this advice. If speed is your game, start with a fast hull. Unless you are in love with this boat, sell it as-is and buy a faster hull. Look for boats that are fast with stock power.
Dave M is offline  
Reply
Old 02-09-2017 | 07:13 AM
  #7  
Registered
10 Year Member
 
Joined: Oct 2012
Posts: 2,232
Likes: 537
Default

I love my 496 l, but I wouldn't put boost into it while using the stock pistons. IMO I would leave your boat alone and enjoy it.
underpsi68 is offline  
Reply
Old 02-09-2017 | 07:24 AM
  #8  
Registered
10 Year Member
 
Joined: Sep 2013
Posts: 2,320
Likes: 1,040
From: Wisconsin
Default

Buying a faster boat is always the more cost effective way to go faster, but not always the most fun. If you get a block and build it up to 600hp with good parts and to be reliable will probably cost a lot more than what you think, good exhaust is 3000 to 6000 alone. If you ask me you'd be taking a step backwards technologically as well. Not saying your idea is terrible but sticking with the 496 may be a better option.

Here is a dimension link: https://www.perfprotech.com/blog/art...54-496-repower

As far as the bravo with that power, you'd have to be checking gears and lube often to stay ahead of the failure. =repeated spending money and time on it and taking it "easy" = Where's the fun in that?

These boats are spelt BOATT, bust out another ten thousand

Last edited by IGetWet; 02-09-2017 at 07:32 AM.
IGetWet is offline  
Reply
Old 02-09-2017 | 07:26 AM
  #9  
Registered
 
Joined: Oct 2015
Posts: 1,244
Likes: 4
From: Lake George, NY
Default

Just to add for reliability. We had a 2004 Chevy 3500 service truck weighing at 13000lbs and pulling equipment trailers from 10k to 15k. Reving 5k on hills. thought you were in a boat with fingers crossed and feeling bad for it. Well, it did it for 275000 miles when we sold it.. and its still going. another guy on here has it now. The 496 is not as weak as you think.
class6 is offline  
Reply
Old 02-09-2017 | 07:30 AM
  #10  
Registered
 
Joined: Nov 2005
Posts: 4,554
Likes: 3
From: Fredericksburg, Va
Default

best bet would be a newer 502..500hp and go from there, the 496 complete has good resale $$
ezstriper is offline  
Reply


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.