I'm gonna hijack the thread again and say those headers look great for the money.
Will have me thinking about my now completed single system if they fit sedans

Gary - 1958 Star Customline and 1940 Ford Deluxe Hotrod

I checked my manifold and found that it is an ECB 9425 B There is a witness mark showing how restricted the 113's are.

So I ported the heads, as I'd like to flow test them I'm not going to.

I got about a 1/4 of an inch open through the head bolt and push rod posts.

And the exhausts.

regrind.just had a visit to shadbolt cams in vancouver bc canada. they did a cam for me (used a 57merc profile)barry the owner tels me the older cams are far better material than the new ones.he also refaces lifters,he claims hardness is not a isue and is selective on how far and what style he refaces. frt should be reasonable for cam and lifters.flights ar dailey van to aust.
sorry i do not have his phone # as i am in az for 1 month. Ihave delt with barry for years,when i worked we used him alot.i have never had a failure with his products,just tell him what you want and take his advice.tell him cliff sent you.if you have time i have lifter cores no cams at present cliff

Here are some pics from my ported heads to CK. Intakes are not so much ported but some bowl work and cleaning. Exhausts are quite big. Valve sizes are stock '59.

http://s188.photobucket.com/user/Reilukaista/library/Runners?sort=3&page=1


Hyvinkää, FI

I Think you can do a bit more in the exhaust side of the head. Here is a pic of a G head sectioned to show the exhaust port. Notice that the black sharpie line on the long radius side of the head runs from the edge of the guide to the center of the ex port flange. You can remove all this. You can also widen the port a bit to get it more round in appearance. The drilled hole shows a lot of material. I found that the biggest improvement was from putting in larger ex valves, I used 1.6" scrub valves that were 0.200" longer but now you can get exact fit valves from John M. The marks on the ex valve and bowl show where to grind a little undercut but removing too much causes loss of compression.

This pic shows the kind of shape I wanted at the exhaust flange. The top manifold in the pic has already been done the bottom one is marked for grinding. I matched gaskets but these days for manifolds like this I would just use HT silicone.



I developed these ideas and some others using a home made flow bench in the early 1990's



Finally if you are going to have fun porting don't forget your special Y Block Goggles



Doug T

The Highlands, Louisville, Ky.