SS/CS question.

[SSDiv6]

Originally Posted by FireSale

The N351 head for Ford isn't on the list of NHRA Approved Parts because it isn't "aftermarket". It has a Ford part number M-6049-N351. So it's legal but not listed on any NHRA list. Anyone interested in this head watch your pocketbook. Special headers. Offset valves mean offset lifters and rockers. 10 degree valves let you run true flat top pi$ton$...

You spend as much money on the N351 as you do with a Chevy in the same class.

[JDUNAHOO]

I have a brand new pair of Ford N351 if anyone is interested. 540-871-5294

[Ralph A Powell]

If you have the N-351 with all the material in the intake port you can make a really great intake port if you raise the intake port by filling the floor about 3/8 and raising the roof the same amount with the 10 degree valve angle you end up with lot of both air speed and air flow. I know for a fact there a run of heads with the intake valve move towards the center of the bore and exhaust moved toward the bore wall. Add some .060 offset cylinder head dowels to move the head and you have a great combination! The reason I know is when I was working at World Products we were the developers and manufacturer of the head for Ford Performance. I still have a file on that product.