What are the opening hours?

Monday 8am - 5pm Tuesday 8am - 5pm Wednesday 8am - 5pm Thursday 8am - 5pm Friday 8am - 2:30pm

Engine Shop

Name: Engine Shop
Address: 1200 4TH Avenue SW, Watertown, SD, 57201, US
Telephone: +16058841059

Full Service Machine Shop, Engine building, and Dyno service for Race, street, hot rod, drag race, OEM, and small to large diesel.

State of the art equipment, quality first, excellent customer service.

09/04/2026

💥Engine Shop Labor Day Sale starts now!💥

From now till September 18th take $500.00 off list price of any in stock engine.

In stock and ready to go:

▪️2011-2016 LML 6.6L Duramax
▪️2007.5-2018 Cummins 6.7L
▪️2003 Ford 5.4L Triton
▪️2010 Ford 5.4L Triton
▪️1999-2007 Chevy 5.3L LM7

Interested?! Check our website for more information.
https://engineshop.com/for-sale/

Mon-Th: 8:00am - 5:00pm & Fri: 8:00am - 2:30pm
1200 4th Ave SW, Watertown, SD 57201
📞 605-884-1059

09/01/2026

Congratulations Cole Phillips on his win last Thursday at Black Hills Speedway!🏁🏆

08/24/2026

Glimpse at one of the one most important processes we do when machining any block. Line honing main bores back to spec and all the same size from the first main to the last main.

08/17/2026

Congratulations Josh Skorczewski Racing on win #4 of the season!
Josh and the team secured the 2026 Wissota Late Model track championship at Dakota State Fair Speedway as well.🏆🏁

08/12/2026

‼️ FOR SALE – 2011-2016 LML DURAMAX 6.6L ‼️

▪️Fully machined block
▪️Milled Mahle piston set
▪️ARP connecting rod bolts
▪️ARP main studs
▪️ARP head studs
▪️Cylinder heads equipped with all new valvetrain
▪️Keyed GM crankshaft
▪️Balanced rotating assembly
▪️Keyed camshaft with upgraded camshaft bolt

$16,769.00 without core
$14,769.00 with good core exchange

Interested?! Give us a call or check out our website for more information and other motors we have for sale. https://engineshop.com/for-sale/
We're happy to answer any questions!

08/06/2026

Duramax Cylinder Heads in line for a full valve job and assembly, new valves, springs, keepers & seals. Getting ready to go on our Duramax Long Block Builds.

07/29/2026

🔥 FOR SALE – 2007.5–2018 6.7L Cummins 🔥

▪️Fleece Street Series Cylinder Head
▪️Fleece Rocker Arms
▪️ARP Main Studs
▪️ARP 2000 Rod Bolts
▪️ARP 2000 Head Studs
▪️Hamilton 178/208 Camshaft
▪️Hamilton HD Pushrods
▪️Hamilton 103 Valve Springs
▪️Billet Frost Plugs
▪️Ceramic Coated Pistons
▪️Big Iron Oil Pan

$17,608.00 without core

$15,608.00 with good core exchange

Interested?! Give us a call or check out our website for more information and other motors we have for sale. https://engineshop.com/for-sale/
We're happy to answer any questions!

07/28/2026

This 408 C.I. LS is being honed to size using our H85AX Rottler cylinder hone. We match the cylinder bores to our desired piston skirt clearance. The surface finish is measured at the end of the honing process with our profilometer and is set to our desired specs. This ensures that the cylinders have optimal sealing, and lubricating capabilities.

Ready for your next build? Come get your block honed today! Give us a call or stop by to get your project on the schedule.

Mon-Th: 8:00am - 5:00pm & Fri: 8:00am - 2:30pm
1200 4th Ave SW, Watertown, SD 57201
📞 605-884-1059

07/20/2026

Congrats to Jason Marko on his win last night at Casino Speedway!
This is Jason's 3rd win in 2026.🏁🏆

07/03/2026

Happy Friday!
Just a reminder we are closed today, Friday July 3rd.

🎇 Wishing everyone a safe and Happy 4th of July Weekend! 🎆

Address

1200 4TH Avenue SW
Watertown, SD
57201

Opening Hours

Monday	8am - 5pm
Tuesday	8am - 5pm
Wednesday	8am - 5pm
Thursday	8am - 5pm
Friday	8am - 2:30pm

Telephone

+16058841059

Website

http://www.engineshop.com/

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