Intake gaskets

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nodemon

nodemon

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I recently posted a question about the need for end gaskets as the ones I got from Edelbrock didn't come with any. As usual, I got differing answers..lol
Some said no gaskets needed, just use RTV... Some said gaskets WITH RTV... and some just gaskets... I just mocked my set up and to me, there's too big a gap to use JUST RTV... I'm going to pose this question again, with pictures this time, do I need end gaskets...?
71 318 w/ 915 j heads and an Edelbrock RPM Performer intake (7176)
Thanks for the feedback..! Extreme novice here.
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Run "the right stuff" gasket maker, it can do up to 1/4 inch gap, if its more than 1/4, use 2 applications after first dries. Cork always worked for me. It was always a little to thick but the bolts cinched it down tight.
"Apply a continuous 1/8″ to 1/4″ bead to one surface, surrounding all bolt holes. Assemble parts within five minutes, tightening bolts to recommended torque levels. Material will fill any surface imperfection. Equipment can be returned to service immediately."
 
Go look down the intake bolt holes first, do they look like the bolts will line-up satisfactorily? Was there any block/ head milling done? If she looks good, get on it with the RTV.
 
When the bolts are tight the gap will be a bit less. Put RTV in there and move on to some of life’s bigger problems.
 
Max1196 said:
Go look down the intake bolt holes first, do they look like the bolts will line-up satisfactorily? Was there any block/ head milling done? If she looks good, get on it with the RTV.
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Not sure what's been done to this engine... I bought it complete, and was running.. I took intake and oil pan off to get a look inside and to paint.
I'll just go with RTV, I guess. I guess the trick will be to build it up enough for that gap, but not too much to where it pushes out on the inside..
 
Contrary to other peoples beliefs I have always used the cork gaskets on the china walls! I put the cork gaskets on without installing the intake gaskets, put the intake on and cinch it up so as to squeeze down the cork gaskets. Then I take the intake back off and install it back with the intake gaskets, putting a light coat of rtv around the water passages and the cork gaskets and I have never had a leak!
 
James Clews said:
Contrary to other peoples beliefs I have always used the cork gaskets on the china walls! I put the cork gaskets on without installing the intake gaskets, put the intake on and cinch it up so as to squeeze down the cork gaskets. Then I take the intake back off and install it back with the intake gaskets, putting a light coat of rtv around the water passages and the cork gaskets and I have never had a leak!
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You have a pretty good gap it seems. You might want to try a cork gasket and see how it fits. No need to try and seal a 3/8" gap with RTV if you have a gasket handy. Aluminum intakes aren't drilled for guide pins so if the factory roll pins are still in place you should remove them.
 
nodemon said:
I recently posted a question about the need for end gaskets as the ones I got from Edelbrock didn't come with any. As usual, I got differing answers..lol
Some said no gaskets needed, just use RTV... Some said gaskets WITH RTV... and some just gaskets... I just mocked my set up and to me, there's too big a gap to use JUST RTV... I'm going to pose this question again, with pictures this time, do I need end gaskets...?
71 318 w/ 915 j heads and an Edelbrock RPM Performer intake (7176)
Thanks for the feedback..! Extreme novice here.
View attachment 1715812726 View attachment 1715812727
Click to expand...
I used The Permatex Ultra Gray Gasket Maker in a 13 oz cartridge. Easy to use with the caulk gun. It fills the large gap front and rear with no leaks.
 
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