Author Topic: Spark plug heat shields  (Read 5378 times)

Gimmea250swb

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Spark plug heat shields
« on: August 19, 2020, 01:31:16 PM »
I’m considering refreshing (cleaning) my engine.  I may attack the exhaust manifolds first.  Can you tell me if these spark plug heat shields are original?  If so, should I blast and replate them with a home plating kit?  Is there a better option.  I’m not showing the car, but would like to stay in the realm of original.

‘69 z/28

rszmjt

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Re: Spark plug heat shields
« Reply #1 on: August 19, 2020, 02:16:58 PM »
Those heat shields are not original for 1969 Z28. They look about 1974-77 vintage. Original heat shields have a small 1/2 moon cutout on the outside edge. Check with D&R or Heartbeat for reproduction shields and you will see the difference.

Gimmea250swb

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Re: Spark plug heat shields
« Reply #2 on: August 19, 2020, 10:42:08 PM »
Thank you sir, I appreciate the guidance.

bowtie68iho

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Re: Spark plug heat shields
« Reply #3 on: October 25, 2020, 02:54:41 AM »
The bracket and screw #274430 in the two-part spark heat shields (i.e, driver's side) were painted orange because they were already attached to the engine when it was painted orange...before reaching the assembly line.  The shield portion #3845717 and screw #447143 of the two-part shield were not painted because they were attached on the assembly line.  The welded one-part heat shield (i.e., passenger side) was also not painted because it was attached on the assembly line.

- Bernie
68 NOR SS/RS L48/M35 Convertible
Cordovan Maroon - Special Paint Exterior (black stripes)
Black Custom Interior
Silver Concours (Legends Class) at 2012 Camaro Nationals, Gold Concours at 2014 MCACN.

68camaroz28

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Re: Spark plug heat shields
« Reply #4 on: October 30, 2020, 12:44:38 AM »
The bracket and screw #274430 in the two-part spark heat shields (i.e, driver's side) were painted orange because they were already attached to the engine when it was painted orange...before reaching the assembly line.  The shield portion #3845717 and screw #447143 of the two-part shield were not painted because they were attached on the assembly line.  The welded one-part heat shield (i.e., passenger side) was also not painted because it was attached on the assembly line.


- Bernie
X2
Chick
68 Z/28 NOR 01B Orig motor/trans/rear
69 Z/28 NOR 07A Orig Block & GM Cross-ram/carbs
69 L34 Rest. Nova Father/Son Car
69 L78 Surv Nova Purch 4/69 31K miles
67 L89 Corv Tribute
68 Corv 427/400 Orig motor
07 Corv Z06
R 68Z build- http://www.camaros.net/forums/showthread.php?t=182584

HOT3O2

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Re: Spark plug heat shields
« Reply #5 on: October 30, 2020, 01:59:12 PM »
Could someone post a pic of original heat shields for a 69 Z.
Rick
69 RS/Z28

Edgemontvillage

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Re: Spark plug heat shields
« Reply #6 on: October 30, 2020, 06:57:34 PM »
Original drivers side (2 part) heat shield


68camaroz28

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Re: Spark plug heat shields
« Reply #7 on: November 01, 2020, 01:06:37 AM »
And the pass side one piece see response #13, Skip’s 69z survivor. http://www.camaros.org/forum/index.php?topic=12083.0;all
Chick
68 Z/28 NOR 01B Orig motor/trans/rear
69 Z/28 NOR 07A Orig Block & GM Cross-ram/carbs
69 L34 Rest. Nova Father/Son Car
69 L78 Surv Nova Purch 4/69 31K miles
67 L89 Corv Tribute
68 Corv 427/400 Orig motor
07 Corv Z06
R 68Z build- http://www.camaros.net/forums/showthread.php?t=182584

HOT3O2

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Re: Spark plug heat shields
« Reply #8 on: November 03, 2020, 01:00:12 AM »
Thanks for the pic Lloyd. And the link Chick. Good stuff.
Rick
69 RS/Z28

 

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