R&G Machining & Engine Parts Inc DBA Grumpy's Performance Center

Engine Rebuilding Service

(971) 252-4156

27716 S. Hwy 213 Mulino, OR 97042

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Closed Today

R & G Machining and Engine Parts, Inc. & Grumpy's Performance Center is located just 10 minutes south of Oregon City in Mulino, OR and provides you with the highest quality engine and cylinder head rebuilding services for domestic, imports, truck, industrial, agricultural and high performance applications. We have a large inventory to serve you quickly and efficiently and we ship engines all over the West Coast.

Diesel engines are our specialty, offering services that include turbos, programmable chips, injections pumps, injector nozzles, and other power enhancements. Our highly trained and professional installers/technicians provide a full array of repair and maintenance services for your vehicles (regardless of make, model or size), RVs and marine.

We offer:

  • Complete Engine Diagnosis and Repair
  • Full Service Machine Shop on Premises
  • Engine and Cylinder Head rebuilt on premises
  • Tune ups, Oil Changes
  • Exhaust
  • Brakes
  • Transmissions/Differentials
  • Mufflers
  • Racing engines
  • Restoration & Collision Repair

    Grumpys Performance Center is a One-Stop Service and Dealership Alternative. We have been rebuilding quality engines for over 25 years. We pride ourselves on the continuous quality of our workmanship. We employ state-of-the-art equipment in our new 40,000 square-foot machine shop, warehouse, and repair facilities.

    We also offer a complete range of engine kits and components for sale, delivered to your front door.

    Give us a call today or e-mail us to have your custom order sent directly to you at a very competitive price.

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    Hours of Operation

    Mon 8:30 AM to 5:00 PM
    Tue 8:30 AM to 5:00 PM
    Wed 8:30 AM to 5:00 PM
    Thu 8:30 AM to 5:00 PM
    Fri 8:30 AM to 5:00 PM
    Sat 9:00 AM to 5:00 PM
    Sun Closed

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