Headers for a 400ci

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Sep 24, 2004 | 10:08 AM

TonyP455

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Member

Joined: Apr 2003

Posts: 162

Likes: 0

From: Pawtucket, Rhode Island

Car: 1986 Trans Am

Engine: 305 Carbed

Transmission: WC-T5

Headers for a 400ci

Hey I have a 305 in my car right now, Im building it with parts that can be moved from my 305 to the future 400.

I hear that 400's have trouble making power at high rpm, wat would be the best header for the 400.

I dont care about how it will preform on the 305.

Thanx Guys.

Sep 25, 2004 | 01:54 AM

Air_Adam

TGO Supporter

Joined: Oct 2002

Posts: 9,067

Likes: 1

From: Saskatoon, SK, Canada

Car: '83 Z28, '07 Charger SRT8

Engine: 454ci, 6.1 Hemi

Transmission: TH350, A5

Axle/Gears: 2.73 posi, 3.06 posi

SLP 1.75"

Sep 25, 2004 | 07:39 AM

Blackroc86

Senior Member

Joined: Jun 2001

Posts: 920

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From: Saskatchewan

Car: 1986 Iroc

Engine: 454 Demon 850DP

Transmission: TH350, 3500 stall

Axle/Gears: 3.73

Hooker 2210's

Sep 25, 2004 | 07:56 AM

jbenge

Supreme Member

iTrader: (2)

Joined: Sep 1999

Posts: 1,496

Likes: 60

From: Danville, IN

Car: 1991 Camaro Z28

Engine: LS1

Transmission: 4L60E

Axle/Gears: Strange 12 Bolt, 3.42

Your choice should depend on your HP goal, 1 5/8 primaries will work fine on a mild 400 but if you are looking to make 500+HP Hooker 2210's are the way to go. Hooker 2210 LT's are a good choice if you have angle plug heads. I bought a set of them not knowing they are made for angle plug heads and didn't use them because they fit so poorly. I have Hedman 1 5/8 LT headers and they fit great..probably a little too small for my combo but they work well.