Intake Manifold Heat Shield

John Scott · 12-16-2014, 08:16 PM

I have a chance to buy a 3973469 (1971 350/270) intake manifold but the heat shield is missing. Is this a big deal? Should I keep looking?

MAURICE BLENDHEIM · 12-16-2014, 09:14 PM

John… No big deal. You can replace it with one from any cast iron small block intake if you find it necessary. On a race application crossover passage is usually blocked off where intake meets heads. Maurice.

Mark Yacavone · 12-16-2014, 09:21 PM

Just use something like this:

http://www.summitracing.com/parts/mor-25050/overview/

I always notch the holes so you can remove the thing without taking all the push rods out.

John Scott · 12-16-2014, 09:21 PM

Thanks Maurice and Mark.

12-16-2014, 08:16 PM	#1
John Scott Junior Member Join Date: Apr 2009 Location: New Brunswick, Canada Posts: 69 Likes: 1 Liked 0 Times in 0 Posts	Intake Manifold Heat Shield I have a chance to buy a 3973469 (1971 350/270) intake manifold but the heat shield is missing. Is this a big deal? Should I keep looking?

12-16-2014, 09:14 PM	#2
MAURICE BLENDHEIM Senior Member Join Date: Jun 2011 Location: Langley (no igloos), British Columbia, Canada Posts: 551 Likes: 269 Liked 228 Times in 78 Posts	Re: Intake Manifold Heat Shield John… No big deal. You can replace it with one from any cast iron small block intake if you find it necessary. On a race application crossover passage is usually blocked off where intake meets heads. Maurice.

12-16-2014, 09:21 PM	#3
Mark Yacavone Veteran Member Join Date: Mar 2002 Location: Miles From Nowhere Posts: 7,415 Likes: 2,581 Liked 4,449 Times in 1,694 Posts	Re: Intake Manifold Heat Shield Just use something like this: http://www.summitracing.com/parts/mor-25050/overview/ I always notch the holes so you can remove the thing without taking all the push rods out. __________________ We are lucky we don't get as much Government as we pay for..... Will Rogers

12-16-2014, 09:21 PM	#4
John Scott Junior Member Join Date: Apr 2009 Location: New Brunswick, Canada Posts: 69 Likes: 1 Liked 0 Times in 0 Posts	Re: Intake Manifold Heat Shield Thanks Maurice and Mark.