Author Topic: 041 heads  (Read 2732 times)

MelShell

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041 heads
« on: January 05, 2022, 12:38:14 AM »
Hello all, I've had a 1969 Camaro Z28 RS Hugger orange black stripes and 720 interior since 1971! Has not run since about 1983/84.  I'm finally able to do the restoration. When I bought it off the car lot, I was told it was originally bought by a lady and she didn't like how it ran or how it handled so she traded it in and I happen to see the car and bought it. I did replace one head in the late 1970's ( can't remember why). it is a 041 head as is the other that came with the car. Some of the people in the restoration circle do not believe 041 heads were ever installed in the factory. I assume the auto parts store I bought the new head from back in the 70's ordered a matching 041 head. I have no reason to believe the original lady owner would change the heads or would the dealership.
I'm convinced the car came from the factory with 041 heads rather than 186 heads. Yes, the 041's have 202 valves.
What is your expert opinion?
I heard of a fellow that had 041 heads and had so many arguments trying to convince people they were original that he caved and replaced with 186's.
My car has a lot of intrigue but some of my circle think I should install 186's because they too believe 041's are not original - I believe they are and to add to the intrigue I am keeping the 041's. Thoughts?  Thanks, MelShell   

169INDY

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Re: 041 heads
« Reply #1 on: January 05, 2022, 01:47:30 AM »
Welcome, Always Love the H.O. coded 72 Cars,

as far as thoughts and opinions, It will take a Bunch of info & these fellas have great resources to draw on.

WHat does the Car look like, i.e. Post a Intro Pic.

Jim
Jim
68 SS/RS L35 Th-400 LOS
69 Pace Car L48 Th-350 LOS
68 Z28 M21 LOS

william

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Re: 041 heads
« Reply #2 on: January 05, 2022, 03:20:31 AM »
A very few Z/28s are known to have been built with 3947041 heads. What is the build date of the engine?
Learning more and more about less and less...

MelShell

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Re: 041 heads
« Reply #3 on: January 05, 2022, 08:51:52 PM »
Thanks Jim and William,Please bare with me as I'm new at this and not very good yet at navigating this forum.
The cat at this point has been in storage and sitting since about 1983/84 so it's not in the best of shape, although the fellow that will be restoring it says it actually is in good condition. I'll try to post a couple pics though.
The deck stamp is E109 - the car is actually first week of June 69.
The heads are Dec 68 and Jan 69 - I'm not sure which head is the replacement and which head is the original.

I tried to copy and paste a pic but it just gives the path to iCloud pic storage - is that OK?

bcmiller

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Re: 041 heads
« Reply #4 on: January 05, 2022, 08:57:29 PM »
I assume you mean casting date?

Posting a link is fine.

Pics as attachments have to be 200 KB or less in size.
Bryon / 1968 Camaro SS 396 coupe - now old school 468 big block
1967 Camaro RS/SS 396 coupe L35/M40 - 4 generation family project
Looking for 68 Camaro with body # NOR 181016

MelShell

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Re: 041 heads
« Reply #5 on: January 05, 2022, 09:54:28 PM »
Yes that is the cast date of the block - sorry C:\Users\MEL\Pictures\iCloud Photos\Photos\IMG_1434.JPG
C:\Users\MEL\Pictures\iCloud Photos\Photos\IMG_1435.JPG

william

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Re: 041 heads
« Reply #6 on: January 05, 2022, 09:55:53 PM »
With those casting dates, there is virtually no chance those heads are original to the car.

May 302 engines have heads cast late April to mid-May.
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68L30

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Re: 041 heads
« Reply #7 on: January 14, 2022, 01:33:28 AM »
Looking for more early dated 041’s…..For a 68. Mine are late June. Anyone else got any earlier dates?

Steve

rszmjt

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Re: 041 heads
« Reply #8 on: January 15, 2022, 12:20:46 AM »
In 50 + years I have Never seen a factory 041 head that had the 2.02 x 1.60 valves with the machined combustion chamber around the intake valve area , the same as a 186" or 492" head. Anyone got any pictures? Thanks.

copo

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Re: 041 heads
« Reply #9 on: January 16, 2022, 10:31:42 PM »
I have a D-8-9 041 cylinder head with the 2.02 x 1.60 valves with the machined combustion chamber around the intake valve area.

rszmjt

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Re: 041 heads
« Reply #10 on: January 17, 2022, 12:30:38 AM »
I have a D-8-9 041 cylinder head with the 2.02 x 1.60 valves with the machined combustion chamber around the intake valve area.

Would you happen to have pictures you could post or send me? That would be great. Thank You.

I worked at a Corvette restoration shop for 20 years from 1986-2006 and all the high Horse 69/70 cars that we worked on had "186" or "492" and before that in machine shops since the early 70,s specializing in cylinder head production and I have never seen a 041" big valve head, im curious as I have had dozens of 186 and 492 heads but curious about the 041. I have heard the 2.02 valve 041: head should be a 041X"

 Not doubting but need to know .
« Last Edit: January 17, 2022, 12:55:32 AM by rszmjt »

copo

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Re: 041 heads
« Reply #11 on: January 17, 2022, 04:05:39 AM »
Do you have a email address to send the photos too.

rszmjt

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Re: 041 heads
« Reply #12 on: January 17, 2022, 04:53:23 AM »
Do you have a email address to send the photos too.

sent you a pm

bcmiller

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Re: 041 heads
« Reply #13 on: January 17, 2022, 02:06:22 PM »
I have a D-8-9 041 cylinder head with the 2.02 x 1.60 valves with the machined combustion chamber around the intake valve area.

I bet that’s not an original “as cast” head. Many many heads late 60s heads were reworked even back as far as the early 70s.
Bryon / 1968 Camaro SS 396 coupe - now old school 468 big block
1967 Camaro RS/SS 396 coupe L35/M40 - 4 generation family project
Looking for 68 Camaro with body # NOR 181016

 

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