Not too bad for a first attempt I suppose. The guy that did the machine work also builds some race motors, and he said he was impressed by my porting job, especially since it was my first try. Feels pretty good to spend lots of time doing something, and then having someone that knows what they are talking about compliment you on it. Anyhoo, on to the technical part of it.....

The idea with this port job was not to "hog out" the port runners or bowls. I have no intentions of running a huge cam, I like my car to have good street manners. So I started by simpley gasket matching the intake ports. Then I flattened the port roofs. I was careful not to take much material off of the port floor, so I mainly just cleaned them up with a light touch. After that I tryed to straighten the path of the airflow, within reason. The last thing I wanted to do was port through anything. Here is some pics-

Left side portmatched, right side stock.

Some preliminary material removal on an intake bowl.

The flash made the exhaust runner on top look funny, but good pic of the bottom one.

Extreme closeup of intake runner!!!

The finished product

Side view

Another good shot of the chambers.

Valvesprings.

The valves are manley race flo 2.00x1.56. I don't know what springs they are, it's whatever the engine builder recommended. He said the LT4 springs that came with the HOTcam kit were not good enough. The port matching was done with a dremel tool with a standard grinding bit. The rest of it was done with an air powered die grinder.

John

 

nice clean looking job ya did there

you can come port mine!


looks to be a good job, i was thinking about porting mine, myself

 

Get a set and start porting, it's time consuming but fun!!!

John

 

Lookin' good! I am going to work on porting this summer. My friend's been doing it for years and he said he'd show me how on some old heads. That's something I really want to learn.

 

Yea practicing on old heads might be a good idea. I kinda just jumped into this, but I did do some research first. Some of the bits you can buy will really dig into the aluminum quick, which is not always a bad thing, so you have to be careful. Plus aluminum tends to clog up the bits that you are using, whether it be a metal bit or a sandpaper roll. Just use some WD-40 and it will take care of a lot of that.

John

 

look good but what about the flow numbers. after all looks dont make the car any faster.

 

I don't know how they flow, after I spent all the money on everything else I was too broke to get them flowed

John

 

Ever used tap magic? That stuff works wonders

Joe

 

Looks very good to me for a home job but I've never done any porting before so what do I know.

BTW, I've got that same dining room set (where's the gay smilie??? )

 

They look nice, when I did mine, I didnt take a lot out of the ports, I took most out of the bowl area. Seemed to do well, my car pulled hard, and still held an idle with the 230/236 on a 110 lsa...hehe

 

Good job man, gonna have to drop by out at bellvue to let me here that thing run...

 

What is it? Never heard of it

It's held up pretty well, and looks good too <---heterosexual wink.

Yea, I was almost scared to take out too much material! Didn't want to port through where the pushrod bend is.

I'm gonna try like hell to get it out there saturday, but I ran into some snags tonight and am behind schedule. I'll keep you posted.

John

 

Here is a great place to get porting stuff.

http://www.eastwoodco.com/aspfiles/D...g+%26+Grinding


They even have a video on porting.

http://www.eastwoodco.com/aspfiles/D...oks+%26+Videos

Looks like a good job, put they really need to be flowed.

 

It's really good cutting oil. It keeps the alum. from clogging your bit and softens the material you're porting. Makes for alot less required pressure. My friend's machine shop uses that stuff religiously.

Joe