Like Tree0Likes

454 Mag Intake Manifold Questions...

Reply
Old 03-15-2007, 12:31 AM
  #1
Registered
Thread Starter
 
Join Date: Mar 2007
Location: Clearwater, FL.
My Boats: 1992 Larson Senza Spectre 25
Posts: 21
Default 454 Mag Intake Manifold Questions...

I've talked with quite a few marine engine builders and am not sure which direction I should go with the intake. I had finally narrowed it down to either the Merlin or the Dart with the Merlin inserts because the boat runs in salt water so that's why it came down to these two. In the final hour I decided that I'm going to ceramic coat the intake and the exhaust manifolds. This opens the door to many other manifolds. The with the right intake and exhaust, the builder said it will produce 525hp without going to a full wet header. Here's some specs on the motor.

JE Flat Top Pistons CR: 10.2:1
Cleaned up Retangular Port Heads
Crane Hydraulic Cam, full roller setup (don't have the specs but it will be spinning up to 5800rpm.)
Gear Drive
Single Plane Intake with 850cfm Carb
Revolution Marine Exhaust

I've herd good things about the Brodix HV2000. I've built my fair share of engines years ago and have always been impressed with their products. I've also been told the Edelbrock Super Victor with a 2" spacer/adapter from 4500 series to the 4150 series carb is probably the best setup. Not sure if I room for the spacer. Was hoping some of you other Senza Spectre guys out there could tell me if I'd have the room or not.

Looking forward to your feedback

Last edited by Senza Spectre Man; 03-15-2007 at 12:38 AM.
Senza Spectre Man is offline  
Reply With Quote
Old 03-15-2007, 10:21 AM
  #2
Registered
 
PatriYacht's Avatar
 
Join Date: Jul 2002
Location: Waterford,MI
My Boats: 94 43SC Black Thunder
Posts: 2,860
Default

You won't get 10.2 to 1 with flat top pistons. It will take a good size dome to get that. I would use the Dart. It will work well on a high revving 454. Also, there's a lot of used ones in good shape around since Merc puts them on alot of engines. The Brodix and Victor are better for larger engines or higher revs than you will see.
PatriYacht is offline  
Reply With Quote
Reply

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Senza Spectre Man
General Q & A
15
03-19-2007 07:53 PM
257legend
General Boating Discussion
1
06-30-2005 08:01 AM
BajaBennett
General Q & A
3
04-18-2003 04:41 PM
badbug
General Q & A
1
04-26-2002 09:37 AM
excaleagle42
General Q & A
3
04-16-2002 11:59 PM



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



All times are GMT -5. The time now is 03:41 PM.


Copyright 2011 OffShoreOnly. All rights reserved.