Redline Engine & Machine is now at 3546 N 1150 W, Unit 103, Spanish Fork, UT 84660. Hours and directions
Utah's engine machine shop for everything from a single head resurface to a complete rebuild. Tell us about your engine and get honest pricing, usually within a few hours.
Complete machine shop services for gas and diesel engines, from daily drivers to race builds.
Full teardown, inspection, and rebuild to OEM or upgraded spec. Every engine is bored, honed, and balanced before it leaves.
Valve jobs, porting, seat cutting, surfacing, and pressure testing on cast iron and aluminum heads, all makes.
Boring, honing, line boring, deck surfacing, and crank grinding held to the tolerances your engine was designed for.
Race prep, stroker kits, cam upgrades, and custom clearances for the strip, the track, or the street.
Grinding, polishing, straightening, and Magnaflux inspection to restore cranks or spec them beyond stock.
Trucks, equipment, and commercial fleets, including Power Stroke, Duramax, and Cummins.
CNC boring bars, Sunnen hones, and digital Magnaflux stations, the same tools OEM suppliers use.
You work directly with the person building your engine, with real updates and real timelines.
Most jobs are done in 3–5 business days, and rush service is available.
We work on: domestic and import, gas and diesel, street and race, classics, trucks and SUVs, marine engines, and custom one-offs.
5.0 stars across 21 Google reviews.
★★★★★Talked with both Ethan and Lance, both really cool dudes! Dropped off my disassembled engine to get it cleaned and checked. Lance got me all taken care of — I can tell he has a passion for what he does. Highly recommend this shop.
Jacob K. via Google
★★★★★I needed my 4-cylinder head resurfaced and Lance was the go-to. The job was done quickly and priced reasonably. They spotted a stripped thread and communicated it immediately. The final product was immaculate.
Brian Z. via Google
★★★★★These guys are awesome! I brought in a crank case that I botched a thread repair on. They were not only able to fix the issue, but do it at a super reasonable price. Will definitely be going back.
Montana N. via Google
★★★★★These guys were honest about everything. They easily could've said my heads failed the pressure test and needed a valve job, but they let me know everything was good to go. That kind of honesty is rare.
Carl C. via Google
We've moved, so update your GPS. Drop-offs are welcome during business hours, and a quote request gets you a faster answer.