Six pack intake manifold question...

chucklbunny · Apr 5, 2019

It's me again guys !,

Another quick question for you all, I'm switching over to a six pack on my 72 Roadrunner 440 and when I install the intake should I change the valley pan at the same time or can I leave the old one on ? also what it the best sealant to use for the intake and the intake bolts hitting the water jackets ? It's been a while since I've changed an intake so I want to make sure I do it right and don't screw it up. Any help and tips you have on this project is greatly appreciated !!

Thanks !

69 GTX · Apr 5, 2019

I would change the valley pan. I use permatex products for sealing. Depending on your uses, they make one with the heat block off.
Pick one that meets heat & petroleum requirements for your job.

Daves69 · Apr 5, 2019

Hey, you're in luck! No water jacket bolts for your 440 intake. Nevertheless, sealing the bolts can help control oil leakage. Don't over torque the bolts! The bolt holes are minimal for holding IMO.
I'd prefer to go new pan with gaskets. Search " 440 intake gaskets " you'll find plenty and various thickness.

68Moparmaniac · Apr 5, 2019

If it's the one piece gasket you need to replace it. A good RTV around the intake ports, valley seal area. Should be good to go.

chucklbunny · Apr 10, 2019

What would be the best RTV you guys recommend ?

68Moparmaniac · Apr 10, 2019

chucklbunny said:
What would be the best RTV you guys recommend ?

I like Permatex Ultra Black, higher oil resistance

chucklbunny · Apr 10, 2019

68Moparmaniac said:
I like Permatex Ultra Black, higher oil resistance

Sounds good ! I will be getting that !! :thumbsup:

Six pack intake manifold question...

chucklbunny

Well-Known Member

69 GTX

FBBO Gold Member

Daves69

Well-Known Member

68Moparmaniac

Well-Known Member

chucklbunny

Well-Known Member

68Moparmaniac

Well-Known Member

chucklbunny

Well-Known Member

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