Reply to "351c EFI intake manifold"

Below is a picture of a Trick Flow 351W intake milled to fit in the valley of a 9.2" deck 351C block.

Ron's application is a 9.2" deck SVO/Windsor block equipped with C302 heads.

I took an hour this evening and did the calculations. I even remembered the trigonometry!

Fitting this same intake into Ron's application will be easier than the application in the picture in 2 ways. (1) Ron's is a Windsor block, not a Cleveland, the rear of the manifold does not require modification. (2) The manifold will sit exactly 37/64" vertically higher in the vee and requires no milling.

The application will require 5/16" adapter plates (spacers) between the intake & heads to make the manifold sit high enough to align the ports in the heads with the runners in the intake.

Mount the adapter plates to the heads with countersunk screws using the existing bosses in the heads; then drill & tap new bosses in the adapter plates to match up with the bolt holes in the Windsor intake manifold.

Ron I believe your application is as easy to accomplish as fabricating 5/16" adapter plates and valley rail spacers. Period. NO intake manifold modifications are required whatsoever.

cowboy from hell