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Small block intake gaskets. #1292432 08/27/12 09:37 PM 08/27/12 09:37 PM
Joined: Mar 2008 Posts: 293 salem, oregon. usa E elmor OP enthusiast
elmor OP enthusiast E Joined: Mar 2008 Posts: 293 salem, oregon. usa	Just put fresh heads on my 318 and used the metal intake gaskets in my kit. Torqued everything to spec and yet I have a massive leak around the intake ports. Anyone encounter this before, and is there a solution short of replacing the gaskets with composite ones? Spent the whole weekend on this project and I'm getting tired of screwing with it.

Re: Small block intake gaskets. [Re: elmor] #1292433 08/27/12 09:53 PM 08/27/12 09:53 PM
Joined: May 2012 Posts: 100 Tennessee M meep_meep member
meep_meep member M Joined: May 2012 Posts: 100 Tennessee	nothing short gasket replacement is going to fix the leak..just replace them with felpro composite gaskets...

Re: Small block intake gaskets. [Re: elmor] #1292434 08/27/12 10:07 PM 08/27/12 10:07 PM
Joined: Dec 2007 Posts: 18,157 Mass DAYCLONA I Live Here
DAYCLONA I Live Here Joined: Dec 2007 Posts: 18,157 Mass	If your using metal intake gaskets on an aluminum intake, that's a no-no

Re: Small block intake gaskets. [Re: DAYCLONA] #1292435 08/27/12 11:04 PM 08/27/12 11:04 PM
Joined: Mar 2008 Posts: 293 salem, oregon. usa E elmor OP enthusiast
elmor OP enthusiast E Joined: Mar 2008 Posts: 293 salem, oregon. usa	Stock 2 barrel intake, 360 heads. Same type of gaskets that were on it.

Re: Small block intake gaskets. [Re: elmor] #1292436 08/27/12 11:11 PM 08/27/12 11:11 PM
Joined: May 2003 Posts: 15,487 Florida S scratchnfotraction I Live Here
scratchnfotraction I Live Here S Joined: May 2003 Posts: 15,487 Florida	Quote: Stock 2 barrel intake, 360 heads. Same type of gaskets that were on it. right there is the problem,small port intake on large port heads. you need a felpro composit gasket for the large port heads to get a seal with the small port intake. the tin gasket is for small port heads with small port intake both cast iron.

Re: Small block intake gaskets. [Re: elmor] #1292437 08/27/12 11:13 PM 08/27/12 11:13 PM
Joined: Apr 2007 Posts: 2,327 Glendale, AZ 6 69L78Nova Banned. Forever.
69L78Nova Banned. Forever. 6 Joined: Apr 2007 Posts: 2,327 Glendale, AZ	If you're using 360 heads with a 318 intake manifold, you're going to have a massive port mismatch in terms of size. Add steel gaskets....and you have a sure leak. As mentioned, use 340/360 composite gaskets, and you'll be good to go 1969 Nova 454/M21/3.31 Mild mid-11 second weekend cruiser 1994 F150 XLT Super Cab 2WD 5.0/4R70W/3.55 (Daily driver)

Re: Small block intake gaskets. [Re: meep_meep] #1292438 08/27/12 11:38 PM 08/27/12 11:38 PM
Joined: Feb 2005 Posts: 4,884 Michigan MNobody master
MNobody master Joined: Feb 2005 Posts: 4,884 Michigan	Quote: nothing short gasket replacement is going to fix the leak..just replace them with felpro composite gaskets... MS90109

Re: Small block intake gaskets. [Re: MNobody] #1292439 08/28/12 12:53 AM 08/28/12 12:53 AM
Joined: Mar 2008 Posts: 293 salem, oregon. usa E elmor OP enthusiast
elmor OP enthusiast E Joined: Mar 2008 Posts: 293 salem, oregon. usa	Thanks guys, I figured that was probably my only option. I just was having a fairy tale moment!

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