Ever wonder just how thick your head is ??

[Twisted Steel Performance]

Thought some might like to see just how thick or thin a 6.5 head is...

I needed to know the thickness of some parts of the head, so I cut one apart... the runners are less than 3/16" thick.. not a lot of room for error if doing a major port job is there.... and very thin around the valve seats....

 

[FellowTraveler]

Interesting!

 

[JayTheCPA]

My Wife says that my head is *way* to thick! Oh, wait, the 6.5's head . . .

Speaking of Wife . . . Hope yours does not notice your head sitting on her nice clean kitchen counter

 

[Twisted Steel Performance]

My Wife says that my head is *way* to thick! Oh, wait, the 6.5's head . . .

Speaking of Wife . . . Hope yours does not notice your head sitting on her nice clean kitchen counter

At least it was clean this time.....

 

[Twisted Steel Performance]

By the way Jay, looking forward to your thread....

 

[n8in8or]

Nice! Turbovanman had a head cut apart and I've been anxiously awaiting his pics so it's great to see yours! Any idea how much that vein in front of the guide in the intake port can be cut down?

 

[FellowTraveler]

Wife with rolling pin and your head on the table too "NOT GOOD!"

You can see cavitation marks too from water steaming.

 

[Twisted Steel Performance]

Nice! Turbovanman had a head cut apart and I've been anxiously awaiting his pics so it's great to see yours! Any idea how much that vein in front of the guide in the intake port can be cut down?

For the vein, I'm not sure yet about the thickness there, personally I don't remove anything much from the vein/ramp area in the intake side just slick it down and shape it more, the vein needs to be there .......

The exhaust side is a little different, some is removed from the exhaust side.....

 

[n8in8or]

For the vein, I'm not sure yet about the thickness there, personally I don't remove anything much from the vein/ramp area in the intake side just slick it down and shape it more, the vein needs to be there .......

The exhaust side is a little different, some is removed from the exhaust side.....

It looked to me that the vein was there to help induce swirl, is that your take on it too?

 

[Twisted Steel Performance]

I'm also going to use this sample to show how well the thermal barrier works in the runners, I am working with someone that is building a motor for a dyno for testing and proving power gains for different items for the 6.5.. we want to use every possible coating to help protect the dyno motor, doing as much as possible to learn what works and what doesn't...

 

[Twisted Steel Performance]

It looked to me that the vein was there to help induce swirl, is that your take on it too?

I think as with any head they are there to channel and flow into the cly .... better to have a ramp than a smooth wall....

 

[JayTheCPA]

Just noticed a couple of turbos on the kitchen counter too:

http://www.thetruckstop.us/forum/threads/universal-he351-vgt-controller.44137/page-2#post-499253

Sure hope your Wife is not in the Country at the moment . . . If she is, you can hide-out at my place for a while

 

[THEFERMANATOR]

how about the thickness between the seats where they always crack?

 

[Twisted Steel Performance]

how about the thickness between the seats where they always crack?

Ferm, you wouldn't believe what I found, I am going to try and get a good pic, there is a HOLE,VOID the size of a pencil right there, I am going to cut another cly in between the valves tomorrow, I have NEVER seen anything like... will post up a pick later....

 

[btfarm]

You obviously have a good band saw. Nice work!

 

[Twisted Steel Performance]

I haven't taken the time to saw it yet, but these pics will speak for themselves me thinks... the hole is a water jacket that we all knows goes through and some have milled & plugged ..etc.... well have a look at how & where the foundry plugged the passage and notice the large hole that is still there..... If this isn't a perfect picture of a stress point I don't know what is...

 

[n8in8or]

Nice. That is ugly. What is the date code of the head? By the first picture in Post #1 it looks like that is a GM head? I wonder if an AMG head would be different?

 

[Twisted Steel Performance]

Just noticed a couple of turbos on the kitchen counter too:

http://www.thetruckstop.us/forum/threads/universal-he351-vgt-controller.44137/page-2#post-499253

Sure hope your Wife is not in the Country at the moment . . . If she is, you can hide-out at my place for a while

We are suited for each other very well.. we take turns spreading a project out somewhere in the house... her stuff is blankets & quilts... mine... well I like attempting the not very easy stuff...

You obviously have a good band saw. Nice work!

Well, I guess so, I do fab a little stuff sometimes at work...

 

[bison]

how about the thickness between the seats where they always crack?

I cut a head apart 6 or so years ago, there is a water jacket between the seats
I figured there was not enough meat there to put a bushing or even a valve insert in.
For that reason i felt it was not worth it to expense the time and machining cost to attempt fixing a head.

 

[ak diesel driver]

so a guy couldn't put seats in one? if so one would have to be very careful doing any kind of valve work