ZZ4 Engine

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Nov 23, 2011 | 10:22 PM

toupstrio

Thread Starter

Burning Brakes

Joined: Aug 2005

Posts: 751

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From: Lufkin Texas

ZZ4 Engine

I have a zz4 engine that I am going to put in a 72. I have the hooker headers with side pipes. Will these headers fit my zz4 heads?

Nov 23, 2011 | 10:52 PM

mikejpss

Le Mans Master

Joined: Jun 2007

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From: Where it's always hot as Hell-South Louisiana.

St. Jude Donor '07-'08-'09-'10-'11-'12-'13

The ZZ4 heads have a D exhaust port, I matched that up with my hookers when I ordered them. Does your existing hedders have a D post flange?
Suggestion: Call Hooker and ask, they should be able to tell u PDQ.

Nov 24, 2011 | 12:38 AM

cv67

Team Owner

Joined: Oct 2004

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From: altered state

St. Jude Donor '05

Sure they will they just have to cover the ports and they are small on those heads. Doesnt have to match just cover thats all.

Nov 24, 2011 | 01:29 AM

Ralphbf

Burning Brakes

Joined: Feb 2011

Posts: 849

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From: Woodland California

Quote:

Originally Posted by cuisinartvette

Sure they will they just have to cover the ports and they are small on those heads. Doesnt have to match just cover thats all.

I have ZZ4 heads on my 75 with Summit's 1 5/8 headers.

The "D" shaped ports are a lot smaller than the header flange.

So no problems man.

Ralph

One more thing I'm very happy with the ZZ4 heads.
I'm putting out close to 335hp with a stock block and Lunati's 102 cam.
with a stock auto tranny and converter.
Dual exhaust is a must. Some say it's worth 50hp.

Last edited by Ralphbf; Nov 24, 2011 at 01:33 AM.

Nov 25, 2011 | 11:07 PM

toupstrio

Thread Starter

Burning Brakes

Joined: Aug 2005

Posts: 751

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From: Lufkin Texas

Thanks to all for the reply's

Quote:

Originally Posted by Ralphbf

Jan 24, 2012 | 11:34 PM

Chris1357

7th Gear

Joined: Mar 2010

Posts: 7

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From: Phoenix Arizona

I just purchased a ZZ4 engine to put into my '73 and would like to go the sidepipe route. Did your hooker sidepipe headers fit with the ZZ4 angled plug heads or did you go back to rear exhaust? I phoned Hooker today and they said the headers wouldn't fit. Thanks

Jan 26, 2012 | 01:39 AM

MakoShark72

Safety Car

Joined: Oct 2006

Posts: 3,993

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From: Gig Harbor WA

Quote:

Originally Posted by toupstrio

I have a zz4 engine that I am going to put in a 72. I have the hooker headers with side pipes. Will these headers fit my zz4 heads?

Absolutely..

Jan 26, 2012 | 09:38 AM

Sigforty

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Joined: Apr 2001

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From: Was New Orleans but swam to Baton Rouge LA

Cruise-In IX Veteran

Not sure the ports, but on my ZZ4 I was using Hooker Supercomps. The none sidepipe ones and they worked fine. The header tube was bigger than the port and the angle plugs did not have any issues.