Who's got a 350 ZZ/4 in a '69 - Team Camaro Tech
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post #1 of 18 (permalink) Old Aug 24th, 08, 04:36 PM Thread Starter
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Kevin
 
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Who's got a 350 ZZ/4 in a '69

I need headers for my combo of 350 ZZ/4, 3rd gen power steering box, and Muncie 4 spd. I don't want to beat on them with a hammer to get them to fit either Thanks, Kevin
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post #2 of 18 (permalink) Old Aug 24th, 08, 07:44 PM
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Dan
 
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Re: Who's got a 350 ZZ/4 in a '69

I don't have the zz4, but a different 350 crate with the 3rd gen box and a M21. I bought Summit brand chrome long tube headers for a 68 and they fit in with plenty of room on the clutch linkage and ps pump. Plus, they were fairly cheap The only thing I had to do was radius the corner on the mini starter aluminum mount. I had the font sheet metal off, so it was easy to see. I also put the clutch linkage in after the headers since my Engine and Tranny went in together. If your car is together, it may be challenging to snake the headers through.

I forgot, the headers do have a factory dent in them as well to help with clearance around the PS pump area.

-Dan

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post #3 of 18 (permalink) Old Aug 24th, 08, 08:00 PM Thread Starter
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Re: Who's got a 350 ZZ/4 in a '69

Thanks, this is what my car looks like right now, so installing them shouldn't be a problem
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post #4 of 18 (permalink) Old Aug 24th, 08, 08:40 PM
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Re: Who's got a 350 ZZ/4 in a '69

The ZZ4 comes with the raised D-port exhaust ports. Headers can be a problem , Headers built to bolt right up will be hard to find.

I have a ZZ383 that is the same block and heads that you have. I used Doug's D-368's. I had to have the exhaust flanges slotted to raise the headers. If you don't, the headers will have about an 1/8th inch gap on the bottom where they do not seal against the head. I had mine slotted about 1/4 to 3/8th of an inch. I also had the top the flanges between the tubes milled down so I could used the GM plug wire brackets that bolt to the side of the heads.

I have no clearance problems with these headers. Since they are raised on the engine they sit higher in relationship to everything else. The plugs are easy to get to. The bell crank has plenty of room. They clear the idler arm and P/S box fine. Because they are raised they fit nice up against the floor board so ground clearance is not a problem.

The only drawback I can think of is they are a little tinny. The 1 3/8 tubes are thinner than those used on 1 5/8 headers.

My 2 cents. (I got them from Summit)

Dave

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post #5 of 18 (permalink) Old Aug 26th, 08, 09:54 AM Thread Starter
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Re: Who's got a 350 ZZ/4 in a '69

Quote:
Originally Posted by Fred Mertz View Post
The 1 3/8 tubes are thinner than those used on 1 5/8 headers.

My 2 cents. (I got them from Summit)
I just got off the phone with Summit and the tech said the D 368's are
1-5/8 primaries. He didn't understand why they had to be modified The only caveat is the book states they will not fit the Saginaw 825 Steering box. I gotta check that out later today.
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post #6 of 18 (permalink) Old Aug 26th, 08, 04:42 PM
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Re: Who's got a 350 ZZ/4 in a '69

The person you spoke to doesn't have a clue. The F-368's are ceramic coated unequal length 1 3/4" headers. They are stated to be for a 68-72 Nova.

I would get a better opinion.

Dave

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post #7 of 18 (permalink) Old Aug 26th, 08, 05:32 PM Thread Starter
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Re: Who's got a 350 ZZ/4 in a '69

Quote:
Originally Posted by Fred Mertz View Post
The ZZ4 comes with the raised D-port exhaust ports.
I have a ZZ383 that is the same block and heads that you have.
According to the rep from Dougs' I just talked to, the ZZ383 has a different head than the ZZ/4. That's why you had to modify your flange. If this 3rd gen steering box I have is the Saginaw 600 series, It will fit without modifying. I just need to find that out.
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post #8 of 18 (permalink) Old Aug 26th, 08, 05:35 PM Thread Starter
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Re: Who's got a 350 ZZ/4 in a '69

Quote:
Originally Posted by Fred Mertz View Post
The person you spoke to doesn't have a clue. The F-368's are ceramic coated unequal length 1 3/4" headers. They are stated to be for a 68-72 Nova.

I would get a better opinion.
You're right! I mis-typed. I meant to say they were 1-3/4. That's what I had written down. Kevin
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post #9 of 18 (permalink) Old Aug 26th, 08, 05:43 PM
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Re: Who's got a 350 ZZ/4 in a '69

I just got a set of D368 Dougs headers for my L-98 style AFR heads based on recommendations of several members of this site. Great fit, good ground clearance, and excellent plug access with angle plug type heads. The D368 headers are 1 3/4" primaries as previously stated by Fred Mertz.







1967 Camaro SS: 406 sbc, 522hp/514 ft lbs, Doug's 1 3/4" headers, M20, posi, 3.73's, vintage air gen IV, IROC steering box, Comp Eng. weld-in sfc's & traction bars, chrome US Mags

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post #10 of 18 (permalink) Old Aug 26th, 08, 06:05 PM Thread Starter
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Re: Who's got a 350 ZZ/4 in a '69

Andy, what steering box do you have?

Kevin
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post #11 of 18 (permalink) Old Aug 26th, 08, 09:40 PM
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Red face Re: Who's got a 350 ZZ/4 in a '69

Hmmm. I stand corrected on the heads. I'm looking at the pictures in the 2007 GM Performance Catalog. The engine shown on page 45 as a turnkey ZZ4 350 has std. port heads. But the picture on page 46 of the ZZ4 base engine has raised port heads. Looks like they got their pictures mixed up.

Sorry 'bout the mis-information.

Dave

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post #12 of 18 (permalink) Old Aug 27th, 08, 04:49 AM Thread Starter
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Re: Who's got a 350 ZZ/4 in a '69

Well, I'm going to go ahead and order the 368's in the plain steel, and If I don't have to modify them, I'll swap them for the ceramic coated. If I gotta wham and fram, I'll have them coated afterward. I did find out I have the 800 series Saginaw, the 3rd Gen quick ratio steering box Kevin
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post #13 of 18 (permalink) Old Aug 31st, 08, 06:33 AM Thread Starter
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Re: Who's got a 350 ZZ/4 in a '69

I let the salesman at Jeg's talk me in to ordering the Hedman Shorty headers #500-68609. They don't clear the Z bar for my clutch even though he assured me they would . What's strange is on their site it states they will not fit the Saginaw 800 series close ratio steering box, but in fact they do clear it (barely). The search continues
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post #14 of 18 (permalink) Old Aug 31st, 08, 07:47 AM
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Re: Who's got a 350 ZZ/4 in a '69

Have you looked at Patriot Clippster street rod headers?

http://www.pertronix.com/prod/new/details.aspx?ID=106

Lane

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post #15 of 18 (permalink) Old Aug 31st, 08, 07:52 AM
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Re: Who's got a 350 ZZ/4 in a '69

On this 69 I ran Hedman 65003 and the fit was great but then again I had a standard steering box with 4 speed.



On this 69 it sounds like I have the same ones you have but coated, Hedman 66609 but I'm using an AGR power steering box but auto trans. I did have to dimple one of the tubes to clear this box.


Dennis
69 Z/28. 302DZ, Autogear M22, Red w/black stripes.
69 Camaro, ZZ4, 700R4, 8.5 3:42 posi, X11
70 Nova SS 396, 4sp, 3:55 12 bolt
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