5.0 Intake Gasket

Topic: 5.0 Intake Gasket (Read 966 times) previous topic - next topic

5.0 Intake Gasket

June 12, 2008, 05:33:20 AM

Is there supposed to be any sort of gasket between the upper manifold and lower on a 86-88 302 FI?

Books I read say yes, but personally, I have never seen one.

If so.. will not having one effect anything?

Thanks

5.0 Intake Gasket

Reply #1 – June 12, 2008, 10:29:26 AM

Yes,there's a gasket that goes between the upper and lower.No sealant,just the gasket.without it,vacuum leaks.

5.0 Intake Gasket

Reply #2 – June 12, 2008, 11:07:03 AM

^not always, vin. my buddy has a built mustang and it has no gasket there, and no problems. I personally use it but have used only one gasket before when I swapped in a spacer.

5.0 Intake Gasket

Reply #3 – June 12, 2008, 11:19:01 AM

Quote

my buddy has a built mustang and it has no gasket there

...and maybe he's got an aftermarket intake with machined surfaces, perhaps?

Even then, I'd use one. You'd be surprised how bad the vacuum leaks could be on an upper that's been pulled a few times and has no gasket.

5.0 Intake Gasket

Reply #4 – June 12, 2008, 01:58:41 PM

I've run my Cobra upper without a gasket... It did idle a bit high, so no doubt had some vac leak... Still with re-set idle, I couldn't tell any difference in operation...

5.0 Intake Gasket

Reply #5 – June 12, 2008, 04:16:58 PM

I have a built cougar I use them.

5.0 Intake Gasket

Reply #6 – June 12, 2008, 06:39:43 PM

Thanks..

I'll be installing one. Just wish I would have done it while I had the fugger apart a few weeks ago.

I have ran without one on my Cobra intake on my 92'. I guess the intake your using makes a difference.