Big Block Heat Shield Measurements with Pictures - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**GOPAPA** · 10-11-2010, 03:55 PM

These are my measurements and pictures I took from the Heat Shield I have for my 402 BB.. I added a drawing along with them for anyone who would want to build thier own as I know they are hard to find and I have seen lots of requests on the forum for measurements ..so thought I would share.. I will be glad to answer questions regarding these pictures and the drawing measurements,,,,,,Gopapa Larry

Thanks to (68 50th forum member) here in these two pictures show where the heat shield goes
This shows the bolt holes location right next to hump on firewall down where the rear of the manifold will be when the motor is installed

This shows a heat shield all bolted up in it's proper place behind the exhaust manifold

sameyrasmea72 · 10-11-2010, 04:38 PM

Good info !!!

raycow · 10-11-2010, 07:47 PM

Where does this shield fit on the engine, and what does it shield from heat?

Ray

JimKshortstep4x4 · 10-11-2010, 08:02 PM

Ray,

It bolts to the floor board on the big block trucks and is there to shield the right side manifold heat from the passenger compartment. The manifold comes real close the angled part of the floor board.

Jim

raycow · 10-11-2010, 08:18 PM

Thank you, Jim. I would never have known, unless maybe I installed a BB and my floor mat started smoking!

Ray

1stimer · 10-11-2010, 08:33 PM

Thanks for this information. I appreciate it.

**GOPAPA** · 10-12-2010, 04:03 PM

A couple more pictures to show where this heat shield goes..thanks to { 68 50th }Member from Sweden..

the pictures are added to the first group in the first posting ..above ^^

10-11-2010, 03:55 PM	#1
GOPAPA Senior Member Join Date: Oct 2007 Location: Nampa Idaho Posts: 7,452	Big Block Heat Shield Measurements with Pictures These are my measurements and pictures I took from the Heat Shield I have for my 402 BB.. I added a drawing along with them for anyone who would want to build thier own as I know they are hard to find and I have seen lots of requests on the forum for measurements ..so thought I would share.. I will be glad to answer questions regarding these pictures and the drawing measurements,,,,,,Gopapa Larry Thanks to (68 50th forum member) here in these two pictures show where the heat shield goes This shows the bolt holes location right next to hump on firewall down where the rear of the manifold will be when the motor is installed This shows a heat shield all bolted up in it's proper place behind the exhaust manifold Last edited by GOPAPA; 10-12-2010 at 03:59 PM.

10-11-2010, 04:38 PM	#2
sameyrasmea72 Senior Member Join Date: Aug 2003 Location: Lubbock, Texas Posts: 2,443	Re: Big Block Heat Shield Measurements with Pictures Good info !!! __________________ 72 Cheyenne Super 80 Silverado Blazer 2wd

10-11-2010, 07:47 PM	#3
raycow Registered User Join Date: Mar 2003 Location: San Francisco, CA USA Posts: 2,454	Re: Big Block Heat Shield Measurements with Pictures Where does this shield fit on the engine, and what does it shield from heat? Ray

10-11-2010, 08:02 PM	#4
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	Re: Big Block Heat Shield Measurements with Pictures Ray, It bolts to the floor board on the big block trucks and is there to shield the right side manifold heat from the passenger compartment. The manifold comes real close the angled part of the floor board. Jim __________________ 1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC

10-11-2010, 08:18 PM	#5
raycow Registered User Join Date: Mar 2003 Location: San Francisco, CA USA Posts: 2,454	Re: Big Block Heat Shield Measurements with Pictures Thank you, Jim. I would never have known, unless maybe I installed a BB and my floor mat started smoking! Ray Last edited by raycow; 10-11-2010 at 09:53 PM.

10-11-2010, 08:33 PM	#6
1stimer Registered User Join Date: Sep 2010 Location: Pasadena, CA Posts: 46	Re: Big Block Heat Shield Measurements with Pictures Thanks for this information. I appreciate it.

10-12-2010, 04:03 PM	#7
GOPAPA Senior Member Join Date: Oct 2007 Location: Nampa Idaho Posts: 7,452	Re: Big Block Heat Shield Measurements with Pictures A couple more pictures to show where this heat shield goes..thanks to { 68 50th }Member from Sweden.. the pictures are added to the first group in the first posting ..above ^^ Last edited by GOPAPA; 10-12-2010 at 04:05 PM.



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