Spark Plug Heat Shields - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**MJN** · 01-27-2019, 05:27 PM

I put them all back on my last rebuild, before that I had to put sleeves on the plug wires to keep them from getting too hot near the manifolds. I also got them from a Corvette parts supplier so they were the correct ones. No issues with the plug boots now.

learyw · 01-27-2019, 07:23 PM

Quote:

Originally Posted by MJN

I put them all back on my last rebuild, before that I had to put sleeves on the plug wires to keep them from getting too hot near the manifolds. I also got them from a Corvette parts supplier so they were the correct ones. No issues with the plug boots now.

Posted via Mobile Device

learyw · 01-27-2019, 11:09 PM

Thanks! Im going to go with the reproduction ones. Id like to keep the original look and if they are still important Ill have them.

sweetk30 · 01-28-2019, 11:53 AM

i have them on my 1ton 4x4 work truck . i have seen lots of burnt boots over the years and was not about to have a set of my own .

that little air gap between the manifold and the shield does help drop temps a lot .

**MJN** · 01-29-2019, 03:23 PM

Just a couple pictures of the heat shields installed on my 350. I think I got them from Rik's Corvette Parts.

01-27-2019, 05:27 PM	#1
MJN Registered User Join Date: Feb 2000 Location: Maquoketa, Ia/ Orr, Mn Posts: 3,101	Re: Spark Plug Heat Shields I put them all back on my last rebuild, before that I had to put sleeves on the plug wires to keep them from getting too hot near the manifolds. I also got them from a Corvette parts supplier so they were the correct ones. No issues with the plug boots now. __________________ '51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com

01-27-2019, 11:09 PM	#3
learyw Registered User Join Date: Dec 2015 Location: Westminster, CO Posts: 26	Re: Spark Plug Heat Shields Thanks! Im going to go with the reproduction ones. Id like to keep the original look and if they are still important Ill have them. __________________ 1978 K20 Camper Special, stock 350, TH400, np203, 265/75R16, GMC 10.5" rear, Dana 44 front 3.73, Q-jet.

01-28-2019, 11:53 AM	#4
sweetk30 Registered User Join Date: May 2012 Location: horseheads,ny rust belt Posts: 2,794	Re: Spark Plug Heat Shields i have them on my 1ton 4x4 work truck . i have seen lots of burnt boots over the years and was not about to have a set of my own . that little air gap between the manifold and the shield does help drop temps a lot . __________________ 77-k30lb BIG truck build . 87-k30lb budget beater build . 85-k30lb the plow machine build . 85-c10sb summer fun toy . ----------------------------- HOLLEY SNIPER efi = worst case of p.i.t.a i ever had . EDELBROCK pro flo 4 = best deal going so far . love my setup works great.

01-29-2019, 03:23 PM	#5
MJN Registered User Join Date: Feb 2000 Location: Maquoketa, Ia/ Orr, Mn Posts: 3,101	Re: Spark Plug Heat Shields Just a couple pictures of the heat shields installed on my 350. I think I got them from Rik's Corvette Parts. Attached Images __________________ '51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.