Intake manifold fitment

[johnplogii]

I am in the process of swapping manifolds & using felpro 1200 intake gaskets. The manifold won't sit down enough to start the bolts on both sides. The block has been decked .010 & the heads have been shaved .010. I had the manifold shaved .020 on both sides yesterday & it still won't fit. Anyone run into this?

Thanks

 

[ChrisCairns]

Are you trying to mount it using the FelPro gasket? If so you may have to use the stock metal GM type, which is thinner.

 

[johnplogii]

Yes, trying to use the felpro 1200 gaskets because of the larger ports.

 

[johnplogii]

Am I the only one on this board running felpro 1200's?

 

[chrisgarrett]

I think most guys use the FelPro MS96033pb which is the valley pan gasket. I have Champion ported iron, and it fits perfectly around the ports.

 

[m233roller]

Milled just the sides? You also need the ends milled. I also run the MS 96033pb on Champion ported irons and like Chris G. matches up perfect.