dthompson
Registered User
Just a little update... I decided that I was going to take a crack at porting these E7 heads. I know they are junk and are not really worth the time or money to port... but right now time is free and I doubt that I can make this head worse than it is stock. I found a write up on diyporting.com that gives a decent guide on how to port these heads. If you have never ported a set of heads, its a lot of work, especially these iron heads. I probably have 12 hours in just the one head so far. I am hoping the next one goes a little fast now that I have a feel for it.
Here is what I started with...
This is where I ended up. There are two places where most of the attention is given. The first one is reducing the size of the valve guide boss. The second is to remove the push rod bumps near the entrance to the ports.
I followed the guide just past part 2. Hopefully I will end up with 180cfm at .500 lift as the guy reports. Its not great, but its better than the 159cfm stock. Speaking of .500 lift... I keep thinking about dropping a cheap cam in the motor now, instead of later. I think the F303 cam would be a good fit, if nothing else they sound pretty good. I have already purchased some upgraded valve springs in preparation for the turbo action later.
Other than that, Im still collecting parts here and there. I scored a good deal on a brand new Trickflow intake. I got the correct timing cover for the mustang water pump for Christmas. And I finally got my rod and main clearances where I want them (0.0026ish on the rods and 0.0030ish on the mains).
Hopefully I can get some time over the next couple weeks to finish the other head. It would be nice to begin putting this motor back together by the end of January.
Here is what I started with...
This is where I ended up. There are two places where most of the attention is given. The first one is reducing the size of the valve guide boss. The second is to remove the push rod bumps near the entrance to the ports.
I followed the guide just past part 2. Hopefully I will end up with 180cfm at .500 lift as the guy reports. Its not great, but its better than the 159cfm stock. Speaking of .500 lift... I keep thinking about dropping a cheap cam in the motor now, instead of later. I think the F303 cam would be a good fit, if nothing else they sound pretty good. I have already purchased some upgraded valve springs in preparation for the turbo action later.
Other than that, Im still collecting parts here and there. I scored a good deal on a brand new Trickflow intake. I got the correct timing cover for the mustang water pump for Christmas. And I finally got my rod and main clearances where I want them (0.0026ish on the rods and 0.0030ish on the mains).
Hopefully I can get some time over the next couple weeks to finish the other head. It would be nice to begin putting this motor back together by the end of January.