Porting 015

This is an E7TE head, with a fairly open chamber, and this is a 1.94 valve. Minor deshrouding grinding is evident, but gains were minimal, and most heads did not have them. 289 heads are a different story. I never attempted a 2.02" valve size. I don't think the bowl can reach the size needed without striking water. And on some heads, a 2.02 valve would mean a smaller than 1.6 exhaust valve, and that concept was at odds with what I was trying to do.


	Workmonster Racing Engines \| home Porting 015 This is an E7TE head, with a fairly open chamber, and this is a 1.94 valve. Minor deshrouding grinding is evident, but gains were minimal, and most heads did not have them. 289 heads are a different story. I never attempted a 2.02" valve size. I don't think the bowl can reach the size needed without striking water. And on some heads, a 2.02 valve would mean a smaller than 1.6 exhaust valve, and that concept was at odds with what I was trying to do.