Rohnert Park Auto Repair

Custom Engine Building: How RPM Engine Can Help You Achieve Your Dream Car

Building a custom engine is an exciting endeavor for car enthusiasts; it’s a process that requires precision, expertise, and a passion to create a powerhouse that perfectly suits your vehicle. At RPM Engines & Machine, we specialize in custom engine-building services that turn your dreams into reality. Whether you're craving speed on the racetrack or seeking a reliable engine for a scenic drive, our professional team is dedicated to delivering exceptional results.

Crafting Custom Engines: Exploring the Possibilities

At RPM Engines & Machine, we pride ourselves on our state-of-the-art shop and advanced CNC High-Speed Machining equipment. This cutting-edge technology allows us to create custom engines with unparalleled precision. By utilizing this machinery, we can produce highly accurate parts and machine blocks to achieve blueprinting accuracy. This ensures that all cylinders are aligned directly over crankshaft mains, correcting any factory casting issues and guaranteeing perfect alignment.

When it comes to custom engine building, the possibilities are virtually limitless. Here are some of the options available to tailor your engine to your preferences:

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  • Engine Displacement: Increase or decrease your engine's displacement to improve its overall power output and torque characteristics.
  • Compression Ratio: The compression ratio determines the engine's efficiency and power delivery. Adjusting the compression ratio allows you to optimize your engine’s performance for your intended use, whether it's high-speed racing or street driving.
  • Camshaft Selection: The camshaft plays a crucial role in controlling valve timing and duration. Selecting a camshaft tailored to your desired power band and driving style can greatly enhance engine performance.
  • Cylinder Head Modifications: Custom cylinder head work, such as porting and polishing, can improve airflow and increase power output. Upgrading to high-performance aftermarket cylinder heads is another option for maximizing engine performance.
  • Fuel System Upgrades: Upgrading the fuel system components (such as fuel injectors, fuel rails, and fuel pumps) supports higher horsepower levels or alternative fuel types.
  • Induction System: Choosing between carbureted or fuel-injected systems and selecting the appropriate intake manifold and throttle body size optimizes airflow and fuel delivery.
  • Exhaust System: Upgrading the exhaust system with headers, high-flow catalytic converters, and performance mufflers can improve exhaust flow, increase horsepower, and enhance the engine's sound.
  • Forced Induction: Adding a supercharger or turbocharger can dramatically increase engine power by forcing more air into the combustion chambers.
  • Cooling System Upgrades: Upgrading the radiator, water pump, and cooling fans can help dissipate heat more effectively, ensuring optimal engine temperature even under demanding conditions.
  • Engine Management and Tuning: Upgrading the engine management system and tuning it for optimal performance includes adjusting fuel and ignition maps, optimizing timing, and fine-tuning parameters to maximize power and drivability.

These are just a few examples of the many options available when building a custom engine! We’ll work closely with you to determine the best options for your specific goals, whether they’re focused on high-performance racing, improved fuel efficiency, or a combination of factors.

The Importance of Precision

In today's performance engines, precision is paramount. Our expert team focuses on machining the block surface square to mainline, re-truing lifter bores, or sleeving them to align perfectly with the cam lobes. These meticulous processes are critical in achieving optimal engine performance and longevity. We handle every aspect of custom engine building with the utmost care and attention to detail. Even if you find the technicalities overwhelming, our team is here to guide you through each step, providing clarity and ensuring your complete understanding.

At RPM Engines & Machine, we understand your vehicle isn’t just a machine; it's a passion and an extension of your personality. That's why we treat every project as if it were our own. With over four decades of experience, we’re committed to delivering unmatched customer service and satisfaction. Ready to embark on the journey of creating your dream car? Contact RPM Engines & Machine to schedule your custom engine building appointment. Call us today at (707) 387-9200 or request an appointment online.


RPM Engine is committed to ensuring effective communication and digital accessibility to all users. We are continually improving the user experience for everyone, and apply the relevant accessibility standards to achieve these goals. We welcome your feedback. Please call RPM Engine (707) 584-8230 if you have any issues in accessing any area of our website.