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  #16 (permalink)  
Old 11-06-2012, 04:59 PM
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Originally Posted by Jkingof956 View Post
so now that I messed up on port maching with gasket am I now am forced to gasket matched my intake manifold???
no. just leave it as is.

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  #17 (permalink)  
Old 11-06-2012, 05:53 PM
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Originally Posted by ap72 View Post
no. just leave it as is.
oh ok i will do so thanks for the help
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  #18 (permalink)  
Old 11-06-2012, 09:18 PM
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Originally Posted by Jkingof956 View Post
so now that I messed up on port maching with gasket am I now am forced to gasket matched my intake manifold???
Like I said- only remove any mismatch as seen if you were looking from the intake runner towards the cylinder head intake port. If there's cylinder head showing where the manifold meets the head, remove it. Don't worry about the mismatch going from the head towards the intake manifold.
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Old 11-07-2012, 02:16 PM
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Like I said- only remove any mismatch as seen if you were looking from the intake runner towards the cylinder head intake port. If there's cylinder head showing where the manifold meets the head, remove it. Don't worry about the mismatch going from the head towards the intake manifold.
ok i will check that. also do i need to do some cleanup like deburring around the intake valve seat? just like i did to the exhaust ports or do i leave it as is and just do the exhaust ports?
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  #20 (permalink)  
Old 11-07-2012, 04:23 PM
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ok i will check that. also do i need to do some cleanup like deburring around the intake valve seat? just like i did to the exhaust ports or do i leave it as is and just do the exhaust ports?
There's usually an area (seen in the image below) that needs attention on all the valves (click on image below for a page on head porting). Just don't get into the valve seat or the machined angles approaching just above and below the seat if the heads have been given a three angle valve job.

Research where the short turn radius is located and leave that area alone.



Good luck.
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Old 11-07-2012, 07:34 PM
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the worst part of vortec heads is the exhaust flow ratio is terrible.The intake flows 230 plus cfm...If you can get the exhaust to flow 185 cfm then your engine will make very good power.You need a flow bench to check your flow.
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