LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Best Valves for LT1 Heads?

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Old

Aug 6, 2007 | 10:24 AM

#1

RRR

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Joined: Jul 2006

Posts: 129

Best Valves for LT1 Heads?

in the 2.00 and 1.56 size?

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Old

Aug 6, 2007 | 10:29 AM

#2

urbaNHunter44

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Joined: Jun 2004

Posts: 395

From: Bay Area, CA

I've always liked Ferreas personally

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Old

Aug 6, 2007 | 12:24 PM

#3

Injuneer

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Joined: Nov 1998

Posts: 71,110

From: Hell was full so they sent me to NJ

I run 2.00" Ferrea on the intake, and 1.56" Manley Severe Duty on the exhaust.

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Old

Aug 6, 2007 | 12:41 PM

#4

Z-RATED94

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Joined: Jun 2003

Posts: 3,557

From: Carol Stream, Il.

Ferreas here too. Just because that is what LE uses. Many use this brand of valve, so I take it for granted (no knowledge on my part) they must be decent.

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Old

Aug 6, 2007 | 12:56 PM

#5

InsuranceGuy

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Joined: Oct 1998

Posts: 149

From: Houston,Texas,USA

Manley Race Flo valves here.

Emil:93Z,383,Vortech,NOS

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Old

Aug 6, 2007 | 01:40 PM

#6

z275plus

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Joined: Jan 2005

Posts: 187

Injuneer why are you using two different brand of valves ?

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Old

Aug 6, 2007 | 05:14 PM

#7

Injuneer

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Joined: Nov 1998

Posts: 71,110

From: Hell was full so they sent me to NJ

Because the Manley is better for the exhaust on an engine running a 300-shot.

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Old

Aug 6, 2007 | 06:04 PM

#8

SantaCruz163

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Joined: May 2003

Posts: 886

From: Connecticut

Not doubting your knowledge, but what makes it better than another valve?

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Old

Aug 6, 2007 | 07:41 PM

#9

lethal93ta

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Joined: Dec 2002

Posts: 603

From: Bethel Pa.

manley severe duty will take a lot more heat thats what I have in mine with race flows on the intake side, 2.055/1.625 tho, this pic is before we blended and polished the chambers.

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Old

Aug 7, 2007 | 08:33 AM

#10

Injuneer

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Joined: Nov 1998

Posts: 71,110

From: Hell was full so they sent me to NJ

Material of construction. Takes the heat.

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