Spark Plug heat shields? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Luis_gz06 · 04-03-2008, 08:34 AM

What years did the factory installed spark plug heat shields in the trucks/blazers/suburbans small block? I heard that only 67-70 had them, and not 71-72. Is this true? And how do you install them? Thanks!

dwcsr · 04-03-2008, 08:59 AM

my 72 350 has them

CG · 04-03-2008, 10:21 AM

Quote:

Originally Posted by dwcsr

my 72 350 has them

Agreed, 72's have em.

aventur1 · 04-03-2008, 04:27 PM

My 71 also has them.

woodridge · 04-03-2008, 05:22 PM

I have never seen a factory installation without them. Plug wire boots don't live long without them.

Luis_gz06 · 04-03-2008, 08:00 PM

Thanks alot guys! That's what I thought. It's just that Somebody told me that only 67-70 had them.

Luis_gz06 · 04-04-2008, 03:14 AM

Now, anyone knows how to install them correctly? Thanks!

aventur1 · 04-04-2008, 07:02 AM

I don't,, heck I was just thinking how to re-route my plug wires without taking them through the motor mounts and use plug wrapped heat shield just so I can show off my yellow wires, LOL.

Luis_gz06 · 04-08-2008, 12:01 AM

TTT, anyone know??

**leddzepp** · 04-08-2008, 12:58 AM

They are fairly easy to install. The mounting holes are already there in the heads. They use a 7/16" x 1/2" bolt to attach (if I remember correctly). It is easier to do if the engine is out of the vehicle. If not, it is easier to crawl underneath and install from below. Make sure the ngine is cold when you do this (obviously)

djcnova · 05-08-2008, 12:33 AM

my 72 has em ! sorryboutyouinsluck

Sammy · 05-09-2008, 01:48 AM

My 69 has em too. I was at a car swap meet last year A guy had 100 brand new ones and wanted $5 a set. I shoulda bought a couple but didn't. He had no idea what they were for.

HoupPhotography · 05-09-2008, 01:54 AM

Quote:

Originally Posted by leddzepp

They are fairly easy to install. The mounting holes are already there in the heads. They use a 7/16" x 1/2" bolt to attach (if I remember correctly). It is easier to do if the engine is out of the vehicle. If not, it is easier to crawl underneath and install from below. Make sure the ngine is cold when you do this (obviously)

they are easy to install.... I learned the hard way (as usual) about installing them from under the truck.

04-03-2008, 08:34 AM	#1
Luis_gz06 Senior Member Join Date: Feb 2006 Location: Las Vegas Posts: 1,378	Spark Plug heat shields? What years did the factory installed spark plug heat shields in the trucks/blazers/suburbans small block? I heard that only 67-70 had them, and not 71-72. Is this true? And how do you install them? Thanks! __________________ 1972 Chevrolet Blazer 4x4 (Almost done stay tuned) 1970 Chevrolet Pickup Longhorn CST/20 (SOLD)

04-03-2008, 08:59 AM	#2
dwcsr Hollister Road Co. Join Date: Apr 2005 Location: Houston Posts: 6,134	Re: Spark Plug heat shields? my 72 350 has them

04-03-2008, 04:27 PM	#4
aventur1 Registered User Join Date: Aug 2007 Location: Boise, Idaho Posts: 676	Re: Spark Plug heat shields? My 71 also has them.

04-03-2008, 05:22 PM	#5
woodridge Senior Member Join Date: Feb 2005 Location: Maynardville, Tn Posts: 3,030	Re: Spark Plug heat shields? I have never seen a factory installation without them. Plug wire boots don't live long without them. __________________ SEMA Network- Protect our Hobby! 71 C30 in pieces, starting to come together. Click here for A Place For Tennessee Truck Enthusiest To Meet

04-03-2008, 08:00 PM	#6
Luis_gz06 Senior Member Join Date: Feb 2006 Location: Las Vegas Posts: 1,378	Re: Spark Plug heat shields? Thanks alot guys! That's what I thought. It's just that Somebody told me that only 67-70 had them. __________________ 1972 Chevrolet Blazer 4x4 (Almost done stay tuned) 1970 Chevrolet Pickup Longhorn CST/20 (SOLD)

04-04-2008, 03:14 AM	#7
Luis_gz06 Senior Member Join Date: Feb 2006 Location: Las Vegas Posts: 1,378	Re: Spark Plug heat shields? Now, anyone knows how to install them correctly? Thanks! __________________ 1972 Chevrolet Blazer 4x4 (Almost done stay tuned) 1970 Chevrolet Pickup Longhorn CST/20 (SOLD)

04-04-2008, 07:02 AM	#8
aventur1 Registered User Join Date: Aug 2007 Location: Boise, Idaho Posts: 676	Re: Spark Plug heat shields? I don't,, heck I was just thinking how to re-route my plug wires without taking them through the motor mounts and use plug wrapped heat shield just so I can show off my yellow wires, LOL.

04-08-2008, 12:01 AM	#9
Luis_gz06 Senior Member Join Date: Feb 2006 Location: Las Vegas Posts: 1,378	Re: Spark Plug heat shields? TTT, anyone know?? __________________ 1972 Chevrolet Blazer 4x4 (Almost done stay tuned) 1970 Chevrolet Pickup Longhorn CST/20 (SOLD)

04-08-2008, 12:58 AM	#10
leddzepp Moderator Join Date: May 2007 Location: Southern Cal Posts: 20,004	Re: Spark Plug heat shields? They are fairly easy to install. The mounting holes are already there in the heads. They use a 7/16" x 1/2" bolt to attach (if I remember correctly). It is easier to do if the engine is out of the vehicle. If not, it is easier to crawl underneath and install from below. Make sure the ngine is cold when you do this (obviously)

05-08-2008, 12:33 AM	#11
djcnova Registered User Join Date: Jan 2008 Location: augusta,georgia Posts: 10	Re: Spark Plug heat shields? my 72 has em ! sorryboutyouinsluck

05-09-2008, 01:48 AM	#12
Sammy Registered User Join Date: Apr 2000 Location: Bonne Terre, Mo Posts: 3,005	Re: Spark Plug heat shields? My 69 has em too. I was at a car swap meet last year A guy had 100 brand new ones and wanted $5 a set. I shoulda bought a couple but didn't. He had no idea what they were for. __________________ '69 Chevy Long Fleet & '71 GMC Short Step & Project "ODD BALL" "You can wash a pig, soak it in most expensive perfume. In the end it is still just a pig." ODD BALL build thread http://67-72chevytrucks.com/vboard/s...d.php?t=478629"



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