Author Topic: valve cover grommets 350 and 302 motors  (Read 4489 times)

sam

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valve cover grommets 350 and 302 motors
« on: October 15, 2009, 06:32:05 PM »
Is the rubber gromet on the drivers side (PCV valve) angle cut or round like the other side? Also assembly line PCV valve, does it have AC Spark Plug on it or just something like AC 105? The PCV valve also had a D underneath on the plunger that moves. Thanks,  Sam

Jerry@CHP

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Re: valve cover grommets 350 and 302 motors
« Reply #1 on: October 15, 2009, 07:59:21 PM »
Same square grommets on both sides, no angles, still available from GM.  I'll have to check valves when I return home.

Jerry

sam

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Re: valve cover grommets 350 and 302 motors
« Reply #2 on: October 15, 2009, 09:35:49 PM »
I purchased a real old set of covers. Look to be 69 vintage and the grommets are hardned. The one on the drivers side is an angle type while the other is round. Maybe changed real early on or different venders? Thanks for the answer. See you at the Dutch!  Sam

JohnZ

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Re: valve cover grommets 350 and 302 motors
« Reply #3 on: October 16, 2009, 05:11:24 PM »
The grommets on my '69Z are the originals, and they're flat (not angled).
'69 Z/28
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fireZ

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Re: valve cover grommets 350 and 302 motors
« Reply #4 on: October 16, 2009, 07:51:03 PM »
Does anyone have the part # for the grommets used on a 68 Z. My GM parts manual shows the 69 -302 part # as 3946862 ,but it does not show the 67 or 68 Z part #
1968 Z28 LA Built
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68Zproject

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Re: valve cover grommets 350 and 302 motors
« Reply #5 on: October 16, 2009, 08:43:49 PM »
When I got mine they were just the round ones.  I looked in Classic Muscle and couldn't find a listing for 67-68.
68Z28

1968RSZ28

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Re: valve cover grommets 350 and 302 motors
« Reply #6 on: October 17, 2009, 01:17:29 AM »
Not sure what year you're talking about, but the original ones on my '68 Z/28 are both round.

Paul

68Zproject

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Re: valve cover grommets 350 and 302 motors
« Reply #7 on: October 17, 2009, 04:02:24 AM »
68Z28

sixt9x33rs

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Re: valve cover grommets 350 and 302 motors
« Reply #8 on: October 17, 2009, 01:40:04 PM »
The grommets on my '69Z are the originals, and they're flat (not angled).
John can you post a picture?
'69 RS Z/28 Olympic Gold, 711
Flat hood no spoiler, black top, endura, 4:10
POP 39,000
69 X77 Z/28 69 711 Original Paint Unrestored
'69 X66 Convertible Cortez Silver 712 black top Endura, auto, bumper guards, am/fm rear speaker 44k miles

JohnZ

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Re: valve cover grommets 350 and 302 motors
« Reply #9 on: October 17, 2009, 01:57:17 PM »
Yup - photos below.
'69 Z/28
Fathom Green
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william

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Re: valve cover grommets 350 and 302 motors
« Reply #10 on: October 17, 2009, 02:31:45 PM »
When I was involved in the Camaro business '83-'97 the '69 grommet was serviced under #3989348.

1968RSZ28

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Re: valve cover grommets 350 and 302 motors
« Reply #11 on: October 17, 2009, 08:56:44 PM »
When I was involved in the Camaro business '83-'97 the '69 grommet was serviced under #3989348.

Still available from GM...

List price = $2.84 each

Paul

fireZ

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Re: valve cover grommets 350 and 302 motors
« Reply #12 on: October 18, 2009, 02:32:10 PM »
So the grommets are the same for 68 and 69 302 cars?
1968 Z28 LA Built
LIC # RPO Z28

1968 Z28

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Re: valve cover grommets 350 and 302 motors
« Reply #13 on: October 18, 2009, 03:45:19 PM »
Here is 68ZProjects link that shows his 68Z and my 68Z looks the same as his and the are not the same as a 1969Z, I guess maybe they made a change with the aluminum valve covers.....

     http://www.camaros.org/forum/index.php?topic=5911.msg38614#msg38614
Jerry G.

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fireZ

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Re: valve cover grommets 350 and 302 motors
« Reply #14 on: October 18, 2009, 04:00:30 PM »
Yes my 68 Z also has the round grommets. In my GM parts guide from my Grandfathers old dealership it lists the square grommets for 1969 cars but does not list 1968 302 cars.
1968 Z28 LA Built
LIC # RPO Z28

Jerry@CHP

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Re: valve cover grommets 350 and 302 motors
« Reply #15 on: October 18, 2009, 11:54:03 PM »
'68 302 and 350 grommets were always round.  The part number has changed and the grommet available today is ever so slightly different in the top radius but very, very close to OEM.

Jerry

fireZ

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Re: valve cover grommets 350 and 302 motors
« Reply #16 on: October 19, 2009, 01:19:38 AM »
Thanks Jerry and good luck with the 67 at the Dutch Classic next weekend.  Paul
1968 Z28 LA Built
LIC # RPO Z28

GaryL

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Re: valve cover grommets 350 and 302 motors
« Reply #17 on: October 19, 2009, 01:37:06 AM »
Yup - photos below.

Hey John, are those dated replacement wires or originals?
Gary

Lemans Blue X33. DZ, M20, manual steering. Only BU code rear end is original.

JohnZ

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Re: valve cover grommets 350 and 302 motors
« Reply #18 on: October 19, 2009, 04:53:42 PM »
Yup - photos below.

Hey John, are those dated replacement wires or originals?

They're dated replacements.
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sam

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Re: valve cover grommets 350 and 302 motors
« Reply #19 on: October 21, 2009, 04:49:50 PM »
How about the PCV valves? Assembly line different that the OTC ones. I have a couple I believe to be assembly line originals and neither say AC Delco Spark Pug on them. Are they one piece steel or two piece with the seam in the middle? Any pictures?  I am refering to a 69 350/300 motor.   Thanks, Sam

1968RSZ28

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Re: valve cover grommets 350 and 302 motors
« Reply #20 on: October 21, 2009, 05:47:42 PM »
'68 302 and 350 grommets were always round.  The part number has changed and the grommet available today is ever so slightly different in the top radius but very, very close to OEM.

Jerry

Jerry -

What's the new part number for the '68 302/350 grommets?  Thank you.

Paul