Engine Decisions Done Right.
Before Costly Mistakes Happen.
We help customers, shops, and fleets make uninformed engine replacement decisions — with verified diagnostics, accountable processes, and real-world expertise.
We Stand Behind Every Decision.
This is not a transaction. When you work with Modern Engine Pros, you're entering an accountability agreement.
We understand the real cost of wrong engine decisions: downtime, lost revenue, reputation damage, and broken trust. That weight does not disappear when you sign the paperwork.
We Own Our Recommendations
If we recommend an engine, we've verified it against your exact specifications. No guessing.
Accountability Doesn't End at Delivery
We remain responsible through installation and post-install verification. If a problem emerges, we fix it.
Consequences Are Real
We know what happens when engines fail. That's exactly why we don't cut corners or take risks with YOUR decision.
Ready to Stop Guessing?
Submit your engine details. We'll provide a verified recommendation based on real diagnostics.
Get Verified RecommendationCompany Heritage
Built on Experience.
Driven by Accountability.
Modern Engine Pros was built by professionals with decades of hands-on experience in engine diagnostics, machining coordination, sourcing, and installation workflows.
Too often, customers are pushed into engine decisions without complete diagnostics, verified measurements, or accountability once problems surface.
We exist to eliminate guesswork from engine replacement.
Every engine recommendation follows a documented process — inspection, verification, sourcing, and post-installation accountability.
40+
Years of Combined Experience
Thousands
Engines Evaluated & Sourced
Zero
Guesswork Decisions
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Active machining environment
Precision measurement & verification
Engine block inspection before approval
Our Approach
How We Work
Decision Guidance
Clear, expert guidance before major engine decisions are made — based on diagnostics, measurements, and real-world outcomes.
Verified Process
No skipped steps. No silent changes. Every stage is documented, reviewed, and approved before moving forward.
Accountable Fulfillment
Responsibility doesn't end at delivery. We remain accountable through installation and post-install verification.
Core Engine Services
Supported as part of a verified, inspection-driven engine process.
Cylinder head inspection, valve seating, and guide workValve Job Services
Precision cylinder head disassembly, inspection, machining, and reassembly — including pressure testing, resurfacing, valve seating, and guide work as required.
Block machining, crankshaft fitting, and bearing clearancesShort Block Services
Complete short block rebuilds including block machining, crankshaft work, bearings, pistons, rings, timing components, and internal tolerances — assembled and verified.
Complete long block assembly and final verificationLong Block Services
Fully assembled long blocks combining short block and cylinder head work, including oil pump, timing set, gaskets, lifters, and verification checks.
Not sure which service is right for your engine? Submit your vehicle details for a verified analysis.
Analyze My EnginePrecision Showcase
Cylinder Head Excellence
Our precision cylinder head machines.
Cylinder Head Inspection & Precision Measurement
Compression Testing & Valve Leak-Down Verification
Precision Valve Seat Machining
Advanced Machining & Surface Finishes
Verified Process
How the Work Actually Happens
Compression testing and measurement verificationVerified Assessment
Root-cause diagnostics including compression testing, leak-down results, teardown findings, and measurement review before any recommendation is made.
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Reviewing findings and locking scope of workDecision Lock
Repair, rebuild, or replacement options are reviewed using real measurements, cost ranges, and long-term risk — then locked before work begins.
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Block machining and component assemblyMachining & Assembly
Machining and assembly executed to factory specifications — including clearances, torque values, surface finish, and component verification.
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Final inspection prior to delivery or installationFinal Confirmation
Final inspection, pre-install verification, and documentation review to confirm the engine meets agreed specifications before release.
Authority & Education
Why Engine Decisions
Go Wrong
Most engine replacement problems don't start with bad parts — they start with bad decisions.
Incomplete diagnostics. Rushed approvals. Unclear responsibility. When the process is broken, the result is failure — regardless of the parts used.
Authority & Education
Why Engine Decisions Go Wrong
Most engine replacement failures don't come from defective parts. They come from broken processes, unclear responsibility, and decisions made without complete information.
Ready to Make the Right Engine Decision?
Our verified process eliminates guesswork. Let's talk about your engine — with real diagnostics, documented decisions, and accountability.
Get Expert GuidanceEngine Analysis
Submit Your Vehicle Details
Tell us about your engine. We'll review the specifics and provide a verified recommendation — based on real diagnostics, not guessing.
Our Ecosystem
Integrated Engine Solutions
Modern Engine Pros operates within a broader engine and parts ecosystem, providing access to verified components and specialized solutions when needed.
CylinderHeadStore.com
Dedicated cylinder head sourcing and machining services.
Visit Store
MEParts.com
Verified engine components and specialized parts.
Visit StoreNote: Purchases are handled securely on the respective platforms.
Contact Us
Get advice from the pros.
With over 40 years of expertise since 1979, our team delivers precision remanufacturing, performance upgrades, and machine shop services. Questions about compatibility, quotes, or your next build? Our experts are here to help.
(818) 409-9494
701 Sonora Ave
Glendale, CA 91201
Shop Hours & Notes
Monday – Friday: 8:00am – 5:00pm
Serving the greater Southern California region. Appointments recommended for in-shop machine services. Nationwide shipping available.
Why Reach Out?
Get expert technical guidance, fast quotes, and tailored recommendations from professionals who live and breathe engines.
Quick Highlights
- 40+ years of proven craftsmanship
- Domestic, import, racing & marine specialists
- Wholesale support & nationwide shipping
"Stay one step ahead without compromising quality" — Modern Engine Pros