Infinity Machine

Infinity Machine

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Contact information, map and directions, contact form, opening hours, services, ratings, photos, videos and announcements from Infinity Machine, Machine Shop, Rapid City, SD.

04/02/2026

Cleaning up a Cummins today! # X15

01/30/2026
01/21/2026
01/01/2026

Happy New Year!!

12/30/2025

What's hiding under there? πŸ€” Just another motor being built from scratch in house for you! πŸš— In the pic, we've got the engine block chillin' on an engine dolly, because let's be real, it's way easier to spin it around the crankshaft when adding new parts πŸ”„. Oh, and check out those two connecting rods already hanging out with the crankshaft - they're like the ultimate BFFs πŸ’•

12/22/2025

Season's Greetings from Infinity Machine! πŸŽ„

We will be operating on a modified schedule during the holiday season: Monday to Tuesday 7am-5, wensday 7-12 closed on Thursday and Friday for Christmas. We will be closed New Year’s Day as well . We appreciate your understanding and wish you a joyous holiday season.

Photos from Infinity Machine's post 12/20/2025

Merry Christmas everyone, from the Infinity team

12/18/2025

Season's Greetings from Infinity Machine! πŸŽ„

We will be operating on a modified schedule during the holiday season: Monday to Wednesday, 7am-5pm, and closed on Thursday and Friday for both Christmas and New Year's weeks. We appreciate your understanding and wish you a joyous holiday season.

Photos from Infinity Machine's post 12/18/2025

Do you opt for O-ring installation on your 6.7/5.9 diesel heads?

Today, we are pleased to offer a premium DPPI (Diesel Power Performance Inc) 6.7L or 5.9L Cummins head, expertly machined with a metal O-ring. This innovative design feature provides an additional .006 protrusion, ensuring a secure seal on the head gasket and preventing blowouts. This high-performance engine head assembly is ready for installation on your vehicle.

Photos from Infinity Machine's post 12/17/2025

Attention all Cummins enthusiasts! 🚨 Look at this incredible find! 🀩 We've got a brand new, never-before-used crankshaft that's ready to be installed in a Cummins ISC 8.3 liter engine of your choice. This is a rare opportunity to get your hands on a New Old Stock (NOS) part that's been waiting for a new home. And the best part? It's ready for pickup at our convenient Rapid City location, so you can get back to work on your project ASAP. Don't miss out on this chance to take your engine to the next level! πŸ’ͺ

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Rapid City, SD
57701

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm