Head work

comparo of a stock port.
 

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what kind of bit are you using for that? I've tried all kinds of things, even bits designed for aluminum and even they gum up eventually... I'm done anyways, I just went through quite a few on the way
 
I have a ton of different shapes and (grit?) Also a ton of sand paper rolls, flap wheels, buffing wheels etc. I probably have around 200$ in bits and grinders. Most of it is left over from when I did the scamps heads, and the rotary in the rx-7.
 
looks like a good clean job... I finished mine off with a small flap wheel too.. made a nice finish without being too smooth for fuel to not stick to the walls.

you did the mani too right?
 
Yeah and s-pipe. I love how the s-pipe came out, I think I took a pound of material out.
 
did you do it all by hand, or did you have some extruding done?

if you did do it by hand, how did you get down in there?
 
All by hand. I bought a seriously expensive grinder that escaped my mind when I put how much money I had in grinding stuff. Lets just say double what I had posted earlier. Its all flexible the grinder portion itself is about an inch long.
 
hmm... interesting... I'd be interested in seeing pics of all your work.. what I've seen so far looks damn good.
 
check out my winter project thread in f/i. It has some middle stage pics.
 
Ran into a boo boo last night... I nicked a valve seat. Luckily it didn't go too deep as I was only using a sanding roll. But now I have to get a valve job. More importantly I have to find someone that CAN do a valve job on these stupid little valves. lol

Other than that set-back I have one more exhaust port to go then it's on to combustion chamber shaping and de-shrouding!
 
BlkZoomZoom said:
Ran into a boo boo last night... I nicked a valve seat. Luckily it didn't go too deep as I was only using a sanding roll. But now I have to get a valve job. More importantly I have to find someone that CAN do a valve job on these stupid little valves. lol

Other than that set-back I have one more exhaust port to go then it's on to combustion chamber shaping and de-shrouding!

send it down, we have all the tooling to recut the seats.
 
Found someone to borrow the tooling from so looks like I'll be doing my own valvejob.

Heres some pics of the finished ports... way too much time in them already.

Intake ports
 

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exhaust ports...
 

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misc. pics
 

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Well I'm bringing the head back up to be flowed tommorow. I'm dropping it off so I don't know if he will get to it tommorow.

I'm kinda anxious to see what all those hours of work did. In a way I don't want it flowed again so I won't be dissapointed. lol
 
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