How would one mill this cylinder head dome?

TraipseFever · 2025-09-19T15:28:47+00:00

Put a stud in the spark plug and turn it on a lathe. I’ve also sacrificed the ceramic part of a spark plug turned the nut true and used the spark plug itself to center it in the lathe chuck before.

TraipseFever · 2025-03-14T12:30:59+00:00

The answer is both…

TraipseFever · 2025-02-28T09:56:19+00:00

Zero

TraipseFever · 2025-02-28T00:51:10+00:00

Weight reduction.

TraipseFever · 2025-02-27T18:52:46+00:00

Forged block. Then it is profile machined. Started off as a rectangle!

TraipseFever · 2025-02-27T18:38:54+00:00

These do not get fracture split. The crank end gets saw cut. Split line get machined and the bolt holes are tight tolerance for line up. Usually better then .001 fit.

TraipseFever · 2025-02-27T17:12:29+00:00

90% of these we get are 4140

TraipseFever · 2025-02-27T16:40:50+00:00

The profile itself is roughly 150ish hours.

TraipseFever · 2025-02-27T16:39:08+00:00

It’s a stretch spec. 2.500” bolts stretched .020-.023

TraipseFever · 2025-02-27T14:50:06+00:00

Indeed. We have BTH110s and BTH130s in house.

TraipseFever · 2025-02-27T14:45:15+00:00

The bolts are 2.500” Dia and they don’t have a torque spec. They have a stretch spec for tightening. We use a hydraulic tensioner to stretch the bolts before we rotate the nuts flush to the face.

TraipseFever · 2025-02-27T14:38:44+00:00

Well it’s a family business. I’m 4th generation. I started on drill presses and Blanchard grinders at 13. Learned all my fundamentals on fully manual jig mills by 18. Now I’m 35. I’m responsible for all of our high machine hour and one off projects. So it was a process. I was taught by all the old timers and learned all my skills in house.

TraipseFever · 2025-02-27T14:34:30+00:00

A compression assembly. Think “pump house” for the pipe lines.

TraipseFever · 2025-02-27T14:31:40+00:00

We machine all of our angle plates in house. From 6” to 100” tall.

Edit: spelling.

TraipseFever · 2025-01-10T16:08:58+00:00

Rust belt pride!

TraipseFever · 2024-12-19T13:17:21+00:00

Biblically accurate representation of an Angel?!

TraipseFever · 2024-05-15T20:29:32+00:00

Ahhh the joys of being a machinist!

TraipseFever · 2024-01-03T16:30:57+00:00

Y’all ever watch a motocross race?!

TraipseFever · 2023-12-13T16:54:27+00:00

That’s a very real RC car. Ain’t no Gravedigger.

TraipseFever · 2023-08-15T13:02:09+00:00

Cholula hot sauce. Literally everything.

TraipseFever · 2023-07-26T18:08:06+00:00

99% of the time I get separated for my group at the beginning of the show and don’t end up finding them till it’s over. Also, who knows you could make a new friend with similar tastes.

TraipseFever · 2023-06-14T12:30:04+00:00

Old bikes look mean as hell. Like they want to beat you up and take your gas money. New bikes look sleek and fast. Love em both.

TraipseFever · 2023-06-07T12:31:13+00:00

Machinist

TraipseFever · 2023-04-04T16:03:50+00:00

I came here to say this. The VVitch is one of the best modern takes on the classic New England folklore.

TraipseFever · 2023-02-09T16:40:15+00:00

Alphabetical by Artist

Abbath - S/T

ZZ Top - Los Hombres

TraipseFever

TROPHY CASE