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Old 09-10-2019, 02:25 PM
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I have a June 28 1969 built car and trying to verify correct intake manifold.
Should the car have a 9794284 or a 9799068 Intake Manifold? I have both since either technically is a ram air III but the question are date codes.
9799068 E229
9794284 C179

What do original cars have during this time frame? Any thoughts and or comments are welcome.
Thanks, Brew

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Old 09-10-2019, 02:40 PM
'ol Pinion head 'ol Pinion head is offline
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Brew, what assembly plant was your 69 Judge built?

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Old 09-10-2019, 02:56 PM
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R for Arlington, Texas

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Old 09-10-2019, 06:18 PM
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I believe a 4284 is the correct one

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Old 09-10-2019, 07:11 PM
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Thanks! The car has a 428 in it since early seventies and it has a 9794234 dated D179 manifold. From what I found this might be the original intake?

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Old 09-10-2019, 09:06 PM
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Roger, what would the vehicle assy. plant have to do with the engine build at the Pontiac assy. plant? I haven't seen any '69 vehicles built in early July '69 with an '068 manifold, blocks maybe, but not intakes.

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Old 09-10-2019, 09:30 PM
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Was asking as the possibility of a late June of '69 Pontiac plant WS or YZ engine having a tighter date (from casting to install) is going to be greater than one from Arlington or Fremont. The only '69 Judge I have knowledge of built that late out of Arlington was a convert & years ago, the restorer was on a search for the correct intake & heads. A late May intake was sourced from a GP while I was boneyarding, I don't remember which casting # it was.

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Old 09-11-2019, 06:57 AM
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Okay thanks guys. Now just need to verify casting number? Any thoughts from some of you is appreciated.
Thanks Brew

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Old 09-13-2019, 01:48 AM
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My 69 non Judge Baltimore built vert I used to own was a 4th week June build. Invoice showed shipped 6/30/69 to Canada. I know I had the 4234 intake manifold. I also believe the RA3 used the same intake as the standard 400 which mine was. I thought I had a picture of the manifold when I restored it, but I can't find it. Anyway, I'm 99% sure it was dated F159 or F219. I know the heads/intake were all within a week of each other. So the casting to install dates were really tight. Hope that helps, Jeff

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Old 09-13-2019, 04:15 PM
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I went through about a two dozen 69 intakes in my shop and on eBay, the earliest 9799068 intake I found was cast May 1st. But as mentioned above some May and June built cars seemed to have been built with 4234 intake. Logically lower volume engines could take longer to be used up. This especially in satellite plants, I saw a mid may 69 GP (home plant of course) with the 9068 (E019 cast date) but I've seen june GTO's from Baltimore and Fremont with the 4234.

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Old 09-13-2019, 04:41 PM
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just after posting the last post I see a 4234 intake appeared on eBay with a E139 date but on closer inspection the rust erosion is such that the date code is far from clear, probably a B

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Old 09-16-2019, 06:03 PM
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Thanks for the input guys. Im in no hurry and would love to find an Arlington late built car. Now that would help allot! If anyone has pictures or comes across such a car please do feel free to reach out. Will keep learning these A bods to verify before throwing any paint.
Cheers, Brew

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Old 09-17-2019, 12:00 PM
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interesting;
I would have thought that intake (as well as block ect) casting numbers were model year specific, and that there would have been zero interchange;

@ "north": Is it possible that the "mid may '69 GP" had a replacement manifold done for one reason or another while still under warranty?
Maybe a service tech goobered one of the threaded bosses on the intake, or cracked the threaded opening for the thermostat??

Again, I had understood that casting numbers were definitely supposed to be model year specific - and somehow related to emissions certification...

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Quite likely one of few '70 Muncie three speed Formula 400's left.


1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing)
2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs)
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Old 09-17-2019, 01:33 PM
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I don't recall where I read this but apparently the reason for the redesign of the intake was to address a tendency of cracks to develop under the intake leading to vacuum leaks. The 9068 intake was definitely factory installed on many late 69 model production engines. I've seen way to many and the casting dates of that intake beginning in early May indicate it went onto engines well before the model year switchover.

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1969 Fbird (Base, 350 & Sprint Cvt’s - 400HO & TA Hardtops)
1969 LeMans (2dr & 4dr Hardtop and a Cvt)
1969 LeMans Safari 2 seat Wagon
1969 GTO (2 Cvt, 2 Hardtops & Judge Hardtop)
1969 Catalina (3 Cvt’s & a 2dr hardtop)
1969 Ventura 2 Seat Wagon
1969 Executive 4dr Sedan
1969 Bonnie Cvt
1969 Bonnie 3 Seat Wagon (2 of them)
1969 Bonnie Brougham (4dr Hardtop & Cvt)
1969 Grand Prix SJ (2 of them)
1969 2+2 2dr Hardtop (Canadian model)
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Old 09-17-2019, 02:17 PM
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huh.
I learned something new.
Thanks!

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1970 Formula 400
Carousel Red paint on Black standard interior
A no-engine, no-transmission, no-wheel option car.
Quite likely one of few '70 Muncie three speed Formula 400's left.


1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing)
2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs)
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Old 09-18-2019, 07:28 AM
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Ive heard that too North by another member here. It will match the rest of the drive train too from what I have gathered. Thanks Johnny for your input too. Thanks still open to other comments guys. Dont plan on build motor till next year. Cheers

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Old 09-19-2019, 08:34 PM
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Brian,
See if this guy has some info on his intake. It has the '69 thermostatic switch on it.
https://minneapolis.craigslist.org/h...980832220.html

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Old 09-19-2019, 09:06 PM
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Already have this intake that is 2 days off this date code. I will buy it for the side effects and/or candy. Thanks Mike for heads-up, Cheers1

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Old 09-20-2019, 06:06 AM
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What I was trying to say is maybe your E229 is the correct one, if the seller has info on the engine/vehicle his E209 came off of.

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Old 09-20-2019, 07:21 AM
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Yes, I got your point and have an email to seller. Just trying to note its sometimes best to purchase an item to get other items too. Will let you know if I get any feedback.
Happy Friday, Brew

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