454 manifold suggestions
01-28-2005 | 01:38 PM
#11
VIP Member
Joined: Oct 2002
Posts: 5,246
Likes: 3
From: Ivoryton, CT
Re: 454 manifold suggestions
I have a Chevy 454/502HO high rise dual plane aluminum intake never used.
It came off of a 425HP/454HO crate engine that had a blower bolted on to it.
$50 it's yours...
It came off of a 425HP/454HO crate engine that had a blower bolted on to it.
$50 it's yours...
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Patrick
Patrick
01-28-2005 | 02:19 PM
#13
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Joined: Feb 2001
Posts: 352
Likes: 0
From: Cedar Rapids, IA, US
Re: 454 manifold suggestions
Edelbrock RPM Air Gap.......great intake.......
altho that $50 intake would be an excellent choice performance AND budget-wise..... Prob would see more than 10hp difference between it, and the Edelbrock.
altho that $50 intake would be an excellent choice performance AND budget-wise..... Prob would see more than 10hp difference between it, and the Edelbrock.
01-28-2005 | 03:43 PM
#17
Frank's Marine Service
Joined: Sep 2002
Posts: 11,959
Likes: 142
From: Elkton, MD
Re: 454 manifold suggestions
Originally Posted by Hostile Takeover
Payton, the existing manifold is not a high rise. The motor is an omc although I'm sure the manifold is a chevy part; probably the same as the merc 330 hp intake.
For the rest of you the compression is a 8.8:1 but will come out to almost 9:1 when the build is over. I would love to give you the cam specs but it is a custom grind retro fit hydraulic roller cam from the engine builder. All I can tell you is that the cam is mild enough that I will have no reversion problems with my captains call.
The builder estimates the power will be 450-480 hp when all is said and done. He is recommending a merc intake but I wanted an idea if I could do a little better with an aftermarket part.
For the rest of you the compression is a 8.8:1 but will come out to almost 9:1 when the build is over. I would love to give you the cam specs but it is a custom grind retro fit hydraulic roller cam from the engine builder. All I can tell you is that the cam is mild enough that I will have no reversion problems with my captains call.
The builder estimates the power will be 450-480 hp when all is said and done. He is recommending a merc intake but I wanted an idea if I could do a little better with an aftermarket part.
01-28-2005 | 05:56 PM
#19
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Joined: Mar 2004
Posts: 29
Likes: 1
Re: 454 manifold suggestions
PAT, If that is the merc manifold w/brass inserts I would love to buy it from you. Please give me a phone number or e-mail me at [email protected]
Thanks
Thanks
01-28-2005 | 08:18 PM
#20
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Joined: Jan 2003
Posts: 6,025
Likes: 1,522
From: Grand Rapids, MI
Re: 454 manifold suggestions
Just out of curiosity. What if you ran the single plane with oval ports into the rectangle heads? Would you be able to get better velocity with the initial volume of the oval port intake?
not an expert at any of this intake-head "VOODOO-black magic" just curious
not an expert at any of this intake-head "VOODOO-black magic" just curious
