Golden Eagle Manufacturing Storage Seal, Rust Inhibitors, Cable Lubricants, & PTFE Lubricants

Golden Eagle Manufacturing: Precision-Machined Performance, Built in the USA

Founded and headquartered in San Dimas, California, Golden Eagle Manufacturing (GEM) has spent over 25 years earning a reputation as one of the most trusted names in precision CNC engine machining. Whether you're building a weekend track car, a full-blown race engine, or restoring a sport compact legend, GEM's commitment to quality craftsmanship is evident in every part that leaves their shop floor.

What sets Golden Eagle Manufacturing apart from the competition is their roots in high-stakes manufacturing. The shop produces components to military-specification tolerances for aerospace and government defense applications — and that same exacting standard carries directly into their automotive performance product line. When a company is trusted to machine hardware for the military, you can be confident their engine sleeves and head studs are built to last under serious horsepower.

CNC Machining at the Core

Every Golden Eagle Mfg. product is manufactured using advanced CNC machining equipment. This isn't simply a marketing claim — it's the operational foundation of the brand. CNC precision means consistent wall thickness in every sleeve, repeatable torque characteristics in every head stud, and tight dimensional tolerances that translate directly to reliable, high-output engine builds. Their machinists perform sleeve installations in-house, ensuring that each sleeved block meets GEM's own quality standards before it reaches the customer.

The Sport Compact Specialist

Golden Eagle Manufacturing has developed an especially deep catalog for Honda and Acura engines, covering popular platforms from the B-series and H-series through the modern K-series. Their reach extends well beyond Honda, with parts engineered for Subaru EJ20 and EJ25 engines, Mitsubishi 4G63 and 4B11 platforms, the legendary Toyota 2JZ, Nissan SR20, and even side-by-side (SXS) powerplants like the Can-Am Maverick X3 and Yamaha YXZ. This broad platform coverage makes GEM a genuine one-stop resource for sport compact and off-road performance builders.

Signature Product Lines

• Engine Sleeves: GEM's cylinder sleeves are designed for reliability at any power level, with in-house installation by experienced machinists. Ideal for engines that have been bored beyond stock limits or are destined for high-boost applications.
• Head Studs: Forged from 8740 high-strength, low-alloy steel right here in the USA, GEM's head stud kits are engineered to keep head gaskets sealed under extreme cylinder pressure — a must for turbocharged and high-compression builds.
• Adjustable Cam Gears: Precision CNC-machined from 6061-T6 billet aluminum with a hard-anodized outer gear, GEM cam gears allow fine-tuning of camshaft timing for maximum power and responsiveness.
• Pistons & Connecting Rods: GEM's catalog includes forged piston sets and H-beam connecting rod options spec'd for demanding applications across multiple engine families.
• Engine Builds & Services: Beyond parts, Golden Eagle offers complete engine building and sleeving services — bringing their in-house machining expertise to your specific build requirements.

A Brand Built on Trust and Track Record

Golden Eagle Manufacturing's involvement with import drag racing runs deep, with direct relationships alongside well-known builders and teams in the sport compact community. This real-world feedback loop — from the track back to the machine shop — means GEM's products are continuously validated under competitive conditions. For enthusiasts who want parts backed by genuine engineering pedigree and domestic manufacturing pride, Golden Eagle Manufacturing consistently delivers.