Questions on Changeing intake manifold gasket is this normal?

[Jacfourteen]

Big props for handling the job yourself, it gives you a lot more pride in your truck to say that you did it yourself. We all had to learn sometime and now you can show someone else.

[mclairmo]

Good job. It's nice to have an install go right.

[petey-pablo]

Originally Posted by HOGDADDY

I might be a little late but is that a steel core intake gasket and are you installing an aluminum intake? I read posts and didn't see what your using.
If so, it is my understanding that aluminum intakes require composite gaskets (non-steel) while iron intakes use steel core. Btw Edelbrock even sells the composite gaskets for their intakes also.

I didn't know there was a difference I just replaced the Gasket with the same one that was already on there by haveing the auto parts store get me the same part number. I am sure the Mechanic wouldn't of put the wrong one on to began with. I used Fel-Pro's Performance 1210 - Intake Manifold Gasket Set. I read on summit it says Composite, but under Gasket Material it says Steel core laminate.

[petey-pablo]

Originally Posted by '72customdeluxe

you changed the oil before you drove right?

That I did not do was I supose to? I didn't think it was nessacery since I didn't spill any coolant in the block when I took the intake off. I just figuerd if there was any debris that had fallen in it would circulate then I can change the oil...

[crakarjax]

Originally Posted by petey-pablo

That I did not do was I supose to? I didn't think it was nessacery since I didn't spill any coolant in the block when I took the intake off. I just figuerd if there was any debris that had fallen in it would circulate then I can change the oil...

You'll be fine. Its good to change it just to be on the conservative side of things.

[HOGDADDY]

Originally Posted by petey-pablo

I didn't know there was a difference I just replaced the Gasket with the same one that was already on there by haveing the auto parts store get me the same part number. I am sure the Mechanic wouldn't of put the wrong one on to began with. I used Fel-Pro's Performance 1210 - Intake Manifold Gasket Set. I read on summit it says Composite, but under Gasket Material it says Steel core laminate.

It looks like it is the steel core gasket to me I would be concerned about that gasket properly sealing with aluminum on top of it and the low torque of the bolts. Most people assume intake gaskets are universal but from reading many posts on other forums on the subject it seems the non-steel intake gasket is the preferred choice for aluminum intakes.

Felpro Z1212 is the correct gasket btw.

If you still have problems with it leaking than I would suspect the gasket.

Edelbrock doesn't even sell a steel core gasket and the 7203 Summit list as steel core is incorrect its not steel.

Also Chevrolet didn't use steel core intake gaskets on 69 Z28's (w/ aluminum intakes) either btw if I an not mistaken.

['72customdeluxe]

If the gasket was bad to begin with I'd imagine you were getting coolant in the oil to begin with

[petey-pablo]

Originally Posted by HOGDADDY

It looks like it is the steel core gasket to me I would be concerned about that gasket properly sealing with aluminum on top of it and the low torque of the bolts. Most people assume intake gaskets are universal but from reading many posts on other forums on the subject it seems the non-steel intake gasket is the preferred choice for aluminum intakes.

Felpro Z1212 is the correct gasket btw.

If you still have problems with it leaking than I would suspect the gasket.

Edelbrock doesn't even sell a steel core gasket and the 7203 Summit list as steel core is incorrect its not steel.

Also Chevrolet didn't use steel core intake gaskets on 69 Z28's (w/ aluminum intakes) either btw if I an not mistaken.

Well Lets hope it doesn't leak anymore. There is a difference in both of those gaskets besides what you mentioned. The one on the TOP is the one I used Z1210 , and the one on the BOTTOM is the one you suggested I use correct for aluminum intakes Z1212. If it were to ever leak again I am hoping it never does but if it did . Would I have a problem useing the Z1212? Because of the two differences in the metal squares? Why does the Z1212 have a hole in the middle of the little metal squares? Does this matter? How would this Affect my motor/intake manifold ? Would there have been a specific reason the mechanic who put the motor together used this gasket to began with, Because of the little differences in the metal tabs? Man I think this is getting complicated for me,Can anyone explain the two differences to me. I am just trying to understand the two like I stated above I have never done anything like this before and just in case it ever does leak again and I have to change it again. I can change it useing the correct gasket that you mentioned without haveing to worry about the differences in the metal tabs? Thanks for the help and sorry for all the questions.

[Sinister]

Just use an Edelbrock gasket for your manifold, guaranteed to work.

[HOGDADDY]

Originally Posted by petey-pablo

Well Lets hope it doesn't leak anymore. There is a difference in both of those gaskets besides what you mentioned. The one on the TOP is the one I used Z1210 , and the one on the BOTTOM is the one you suggested I use correct for aluminum intakes Z1212. If it were to ever leak again I am hoping it never does but if it did . Would I have a problem useing the Z1212? Because of the two differences in the metal squares? Why does the Z1212 have a hole in the middle of the little metal squares? Does this matter? How would this Affect my motor/intake manifold ? Would there have been a specific reason the mechanic who put the motor together used this gasket to began with, Because of the little differences in the metal tabs? Man I think this is getting complicated for me,Can anyone explain the two differences to me. I am just trying to understand the two like I stated above I have never done anything like this before and just in case it ever does leak again and I have to change it again. I can change it useing the correct gasket that you mentioned without haveing to worry about the differences in the metal tabs? Thanks for the help and sorry for all the questions.

The heat riser passage is insignificant imho and I would just whatever is supplied with gasket.
I guess some mechanics will use whatever is available and maybe he didn't know any better I dunno.
Ask Edelbrock or any engine builder for their honest opinion on the matter but if you really think about it how well will an aluminum intake compress a steel gasket?

Also sometimes steel head gaskets are used on aluminum heads but it will indent a ring on head where the steel is around combustion chamber and of course the bolts on heads are torqued much higher than intakes too.

[petey-pablo]

Ok cool thanks.

[tim21391]

thing id to since this is your first task.. is to take a sharpie.. and mark the distributor and manifold.. so when u stick it back in you can line it back up

[70stroker]

i have always used the ones you used. I also have always had iron heads, and some sort of aftermarket aluminum intake. I have never had a problem.

I have used them on the following setups

my old mans stock 350 in his 67
my 383 stroker in our 75 corvette
my 454 with a blower in my 70gmc

I dont think youll have a problem at all

[HOGDADDY]

Like I said ealier from my observations the non-steel gasket is the preferred choice for aluminum intakes but please don't take my word on it do your own research here.

Hopefully I have at least raised some concerns here and am only trying to share the best method here for my fellow truckers.

[petey-pablo]

Thanks guys took the truck for a nice long drive down to Gilroy today it ran strong I am happy I have acomplished something once again with the help of everyone here on the Thread..