WYO Engine & Machining LLC

10/02/2026

Surfacing a Duramax LML head!

09/09/2026

These Cat 3408 cylinder heads got the works! They are first cleaned up and degreased then tore down. We then clean up all gasket surfaces and check over the block for any possible defects. Then it’s into the surface grinder to clean up the deck. After injector tubes are cleaned up and reinstalled with new seals we pressure test them up to 100psi. All the seats are then polished and ground. The new valves are lapped to the seats and the heads get reassembled. Finally a quick paint job and they are ready to go!

08/13/2026

08/13/2026

Surface grinding some Cat 3408 cylinder heads! These heads were sent in to be rebuilt and pressure tested.

06/24/2026

Exciting news! WYO Engine and Machining- machining equipment is officially up and running! I am set up for engine machining- everything from passenger engines to heavy equipment.

Here is a list of services offered. This list is not entirely inclusive.


-Valve grinding
-Valve seat grinding and seat replacement
-Valve guide repair and replacement
-Block and head surfacing
-Cylinder sleeve removal and install
-Cylinder head rebuilding
-Cylinder boring
-Line boring
-Welding
-Bolt removal and thread repair
-Hot tanking for blocks and heads
-cylinder head pressure testing

Message me for pricing or to set an appointment! 406-301-4637. Located in Glenrock, WY

04/28/2026

Moved some machining equipment over to the shop recently! These machines will be up and running soon. We will be able to surface engine heads and blocks, line bore, replace valve seats and guides, and much more!

04/27/2026

We are getting machines moved in! We are in the process of getting machines operational.

Currently we are able to do the following services:

-valve and valve seat grinding
-cylinder head rebuilding
-hot tanking for blocks and heads

We will have more services available soon! Message or call for pricing!