Da Nailhead adventures by whatever

By diyauto
( 2 )

4 minute(s) of a 57 minute read

12-1-2013

After some time (pretty long) I got the block from the shop.

It was hot washed and etc. (Damn those tiny corrosion spots due to swell)



No pics, sorry. I'll get some!

(Nothing special in the video, except checking out my casting flash removal.)






Luckily, I got the long waited parts yesterday!






8 pairs of rod bearings (look like Michigan, but slightly different) - sourced with the help of Russ Martin, thanks!

2 x reconditioned connecting rods - they are from different Nailheads, so balance is different, but I hope everything other is okay!

aand finally:

8 pairs of NOS Michigan rod bearings. I don't know the year, but I know that OEM bearings were far superior than any other, due to being Morraine M400, which had strict quality control and thus cost a lot. But they had a short run.



To tell the truth, they all look alike! But I'm willing to stick with NOS ones, because the still look better and measured to be pretty consistent in dimensions.





Now gotta turn the rod journals properly this time, and we're close to the end. Some head work still needs to be done.

Also the intake manifold had received teh Doc's mod, yet haven't got a shot of it. Few things to finish there!



12-13-2013


Thanks guys!

Quite a honour for me, it's good to share some stuff with the community!

Anyway, I'm doing these videos for you! And to test my knowledge, maybe. 



The light went down in the garage lot. I've done a quick mock up, it looked pretty clean, until I used some flashlight, lol.





I'm pretty happy with the results, the piston still sunks in the bore a little, maybe 0.3 mm. But it's waaay much better as if I wouldn't have decked the block that much (1.5 mm off each side). We don't have Nailheads here and the whole project is pretty much expensive, so it was pretty risky. (...we have a proverb "The one, who doesn't risk, doesn't drink champagne", well, you know! haha... it's similiar to "nothing ventured, nothing gained")


Took the valve guides, made some blueprints and brought them for additional maching.

They're gonna be ready soon!


It's been a while again since the light went up.

I made a prototype exhaust port and I like it really really much. 









As patents say "those skilled in the art will see" that there are some significant changes.

Basically, I assumed that a tear drop shape is better for aerodynamics and tried to mimic it. The valve guides will be tapered as well.

Too bad the cutter had once fallen in the guide bore, don't get too close to the bore. :P

I'll do a video as soon as I get it straight.




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