Engine Rebuilding
Complete rebuilds for stock and performance applications, with inspection and machining at every stage.
Orem · Utah CountyPrecision Engine Machining.
Precision Engine Machining.
Proven Performance.
Trusted by Utah mechanics, racers, builders, and vehicle owners for expert engine machining, rebuilding, and cylinder head services.
Decades
Of experience
1000s
Of engines built
±.0001"
Measured tolerance
5★
Reputation in Utah
What We Do
All services Full-service engine machining
From a leaky head gasket to a full performance build — every job gets the same disciplined, measured approach.
Cylinder Head Services
Resurfacing, crack inspection, valve work, and pressure testing for cast iron and aluminum heads.
Engine Block Machining
Boring, honing, decking, and line boring to factory or custom blueprint specifications.
Crankshaft Services
Precision grinding, inspection, and balancing for smooth, reliable performance under load.
Connecting Rod Conditioning
Inspection, resizing, and full reconditioning to keep your rotating assembly true.
Flywheel Resurfacing
Precision resurfacing for street, towing, and performance clutch applications.
Built On Craftsmanship
Old-school expertise. Modern precision.
We've spent decades building a reputation in Utah County for one reason: the work holds up. Every block, head, and crankshaft is measured, machined, and verified by hand — the way good engine work has always been done.
- Calibrated equipment and documented measurements
- Direct communication with the technician on your build
- Honest recommendations — we tell you what you need, not what we want to sell
Why Choose Clegg
Six reasons builders come back
Precision Machining
Tolerances measured, verified, and documented on every job.
Fast Turnaround
Realistic timelines and clear communication from drop-off to pickup.
Experienced Technicians
Decades of combined machine-shop experience under one roof.
Trusted by Local Shops
The go-to machining partner for repair shops across Utah County.
Fair Pricing
Straightforward quotes with no surprises — quality work at honest rates.
Quality Workmanship
Built to outlast the job — the way engine work is supposed to be done.
Our Process
From teardown to ready-to-assemble
A repeatable, documented process so you know exactly what's happening to your engine at every step.
- 01
Inspection
Disassembly, cleaning, and full measurement of every component.
- 02
Diagnosis
Clear report on what's serviceable, what needs work, and what to replace.
- 03
Precision Machining
Boring, honing, decking, grinding — to your spec or factory blueprint.
- 04
Quality Verification
Every dimension checked and signed off before it leaves the shop.
- 05
Ready for Assembly
Packaged and protected so your build comes together right.
In the shop
Cylinder Head Resurfacing
In the shop
Crankshaft Grinding
In the shop
Performance Build
What Customers Say
A reputation built one engine at a time
"Excellent machine work and very fair pricing. Everything was completed quickly and exactly as promised."
"They've earned my trust over multiple engine projects and consistently deliver outstanding results."
"Professional, knowledgeable, and always willing to help find the right solution for the build."
Get Started
Ready to start your engine project?
Tell us about your build. Whether it's a daily driver, a numbers-matching restoration, or a race motor — we'll guide you to the right spec.