394 exhaust manifold for '61

bjtstarfire · October 17th, 2008, 06:48 PM

I am interested in confirming the following exhaust manifold part#'s for my car prior to purchasing the correct dual exhaust system that the car originally had. Today it has the xover pipe which I'll remove and add a block-off on the RH side of the manifold. The numbers seem to be correct from my research thus far and they are:
GM 579278 RH
GM 579279 LH D2

btw any part number for the manifold heat control valve that can be crossed to a new one?

The shop manual states that gaskets are not used between the C-head and exhaust manifold - is that still a valid way to install it ???

59-59-59 · October 17th, 2008, 10:38 PM

In my '61 flat rate book, I'm looking at LEFT side - 579279 and for the RIGHT side - 579278. If your looking for an exhaust manifold heat riser valve, then Fusick sells them brand new.

bjtstarfire · October 19th, 2008, 05:18 AM

Thanks 59-59-59 what are your thoughts on the gasket, if any?

Olds64 · October 20th, 2008, 07:30 AM

Use a gasket unless you have the mating surface on the manifold and head machined. Use anti-sieze on the bolts and torque them to spec. Make sure you retorque them after driving the car a couple of times.

bjtstarfire · October 20th, 2008, 04:48 PM

Thanks all!

October 17th, 2008, 06:48 PM	#1 (permalink)
bjtstarfire Registered User Join Date: Nov 2006 Location: Greater Philadelphia, PA area Posts: 105	394 exhaust manifold for '61 I am interested in confirming the following exhaust manifold part#'s for my car prior to purchasing the correct dual exhaust system that the car originally had. Today it has the xover pipe which I'll remove and add a block-off on the RH side of the manifold. The numbers seem to be correct from my research thus far and they are: GM 579278 RH GM 579279 LH D2 btw any part number for the manifold heat control valve that can be crossed to a new one? The shop manual states that gaskets are not used between the C-head and exhaust manifold - is that still a valid way to install it ??? __________________ Ben '61 Starfire Last edited by bjtstarfire; October 18th, 2008 at 06:48 AM.. Reason: Fixed typo in left side part number

October 19th, 2008, 05:18 AM	#3 (permalink)
bjtstarfire Registered User Join Date: Nov 2006 Location: Greater Philadelphia, PA area Posts: 105	Thanks 59-59-59 what are your thoughts on the gasket, if any? __________________ Ben '61 Starfire

October 20th, 2008, 07:30 AM	#4 (permalink)
Olds64 Landyacht Club President Join Date: Jul 2007 Location: Lawton, OK Posts: 4,286	Use a gasket unless you have the mating surface on the manifold and head machined. Use anti-sieze on the bolts and torque them to spec. Make sure you retorque them after driving the car a couple of times. __________________ Ferris, my father loves this car more than life itself... Apparently, you don't understand! Ferris, he never drives it! He just rubs it with a diaper! Cameron Frye Ferris Bueller's Day Off 1986

October 20th, 2008, 04:48 PM	#5 (permalink)
bjtstarfire Registered User Join Date: Nov 2006 Location: Greater Philadelphia, PA area Posts: 105	Thanks all! __________________ Ben '61 Starfire

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October 17th, 2008, 10:38 PM	#2 (permalink)
59-59-59 Registered User Join Date: Sep 2006 Posts: 308	In my '61 flat rate book, I'm looking at LEFT side - 579279 and for the RIGHT side - 579278. If your looking for an exhaust manifold heat riser valve, then Fusick sells them brand new.

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