1966 Chevrolet Chevelle SS — 138-Code Super Sport

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Overview

This is a documented 138-code Super Sport — VIN 138176A179603, New Mexico title in hand, no lien — acquired as a non-running shell in the 1990s and rebuilt from the frame up by a single enthusiast owner over more than a decade. The build was methodical: frame first, then drivetrain, then suspension, then body and interior. Every major system was replaced with named, receipted components. Purchase receipts span 2006 to 2022 and document over $20,000 in parts from verifiable vendors. Fewer than 500 miles have been driven since completion. The car runs, drives, shifts, idles, and starts. It is being sold as-is and is offered transparently — all known issues are disclosed below. Bidders are strongly encouraged to inspect in person. Live video walkthroughs are available upon request.

Vehicle Details

• Year: 1966
• Make: Chevrolet
• Model: Chevelle Super Sport
• Body Style: 2-Door Hardtop Coupe
• VIN: 138176A179603
• Build Code: 138 — Factory Super Sport Designation
• Title: New Mexico, Lien-Free
• Miles Since Build: Under 500 
• Exterior Color: Marina Blue (Original) — Base Coat / Clear Coat
• Interior Color: Black

Engine & Drivetrain

The LS-1 6.0-liter cast iron block was sourced with approximately 40,000 miles and torn down for inspection — cylinder walls showed factory hatch marks at teardown, confirming minimal wear. It was rebuilt with new GM LS-3 aluminum heads (all new valves and springs), a takeoff LS-3 intake manifold with factory injectors and coils, and a FAST 90mm Big Mouth cable-throttle body. MSD handles ignition; a K&N cold air intake feeds the throttle body. The FAST EFI system is operational with a base map loaded and requires a final dyno tune to fully optimize fuel and ignition tables — the idle currently pulses as a result. Drive goes through a T-56 6-speed manual with hydraulic throwout bearing to a Moser 9" Ford rear end with Chevelle-matched brackets, a Posi carrier, and 4.11 gears. Power is transferred through a custom-built Dynotech DOM steel driveshaft (3.5" × .083" × 57.687"), high-speed balanced to the T-56 output. JEGS LS1/Chevelle-specific ceramic-coated headers feed a 2" dual exhaust with polished side-exit tips.

• Block: LS-1 6.0L Cast Iron
• Heads: GM LS-3 Aluminum — New Valves and Springs
• Intake: LS-3 Takeoff Manifold — Factory Injectors and Coils
• Throttle Body: FAST 90mm Big Mouth, Cable-Actuated
• Ignition: MSD
• Air Intake: K&N Cold Air
• EFI Tune: Base Map Loaded — Final Dyno Tune Required
• Transmission: T-56 6-Speed Manual
• Clutch: New — Hydraulic Throwout Bearing
• Driveshaft: Dynotech Custom DOM Steel — 3.5" × .083" × 57.687", High-Speed Balanced
• Rear End: Moser 9" Ford — Posi, 4.11 Ratio
• Rear Brackets: Welded to Chevelle Suspension Geometry
• Headers: JEGS LS1/Chevelle-Specific, Ceramic-Coated
• Exhaust: 2" Dual — Polished Side-Exit Tips

Frame & Undercarriage

Before the drivetrain went in, the frame was pulled from the body, sandblasted to bare metal, and boxed full-length with 1/8" steel plate. The undercarriage presents cleanly — black-coated floor pan, no visible rust, no leaks, all lines routed cleanly. Fuel delivery is handled by an Aeromotive Phantom in-tank fuel system with stainless lines to the injectors. Cooling is a Griffin heavy-duty aluminum radiator with an electric fan cycling automatically at 170°F. DEI floor and tunnel heat shields are installed throughout, with Boom Mat acoustic insulation for additional thermal and sound control.

• Frame: Sandblasted — Boxed with 1/8" Steel Plate, Full Length
• Floor Pan: Solid, Black-Coated — No Rust
• Fuel System: Aeromotive Phantom In-Tank EFI — Stainless Lines
• Radiator: Griffin Heavy-Duty Aluminum
• Cooling Fan: Electric, Automatic — 170°F
• Heat Shielding: DEI Floor and Tunnel Shields
• Acoustic Insulation: Boom Mat

Suspension & Brakes

Classic Performance Products handled the suspension from end to end. Up front: C6 Corvette spindles on CPP round-tube A-frames with a 1" spring drop and a CPP power steering gearbox. At the rear: CPP tubing cradles the Moser axle. Braking is four-wheel 13" disc with a CPP 4-disc power brake booster kit and heavy CPP sway bars front and rear. Pre-bent stainless brake lines replace all rubber lines front to rear.

• Front Spindles: CPP C6 Corvette
• Front A-Frames: CPP Round-Tube — 1" Spring Drop
• Steering: CPP Power Steering Gearbox
• Rear Cradle: CPP Tubing
• Sway Bars: CPP Heavy-Duty, Front and Rear
• Brakes: 4-Wheel 13" Disc
• Brake Booster: CPP 4-Disc Power Brake Booster Kit
• Brake Lines: Pre-Bent Stainless, Front to Rear

Exterior

The body was removed from the frame and sent to a professional body shop where an extensive panel replacement program was carried out, documented by receipts. Replaced panels include: full left quarter, full right quarter, bare driver door, radiator support, rear window/trunk panel, right inner fenderwell, front dash kit, and trunk floor section — all sourced from Original Parts Group and specialty restoration suppliers. The car was then painted in its original Marina Blue in base coat/clear coat. All exterior trim is polished. New front and rear chrome bumpers were installed along with new headlights, taillights, and windshield. Wheels are 17" American Racing units designed to replicate the original SS steel wheel profile. Tires are new but do not meet current DOT age requirements.

• Color: Marina Blue (Original) — Base Coat / Clear Coat
• Trim: All Polished
• Bumpers: New Chrome Front and Rear
• Headlights: New
• Taillights: New
• Windshield: New
• Wheels: 17" American Racing — SS Steel-Wheel Replica
• Tires: New — Do Not Meet Current DOT Age Requirements

Interior

TMI Sport R bucket seats front and rear are paired with a new headliner, new carpet, stock-style door panels, and new door and window hardware throughout. An Ididit tilt column replaces the original. A Dakota Digital VHX gauge cluster is installed and functional — it displays a calibration prompt for the speedometer pending gear ratio programming. Vintage Air AC is fully plumbed with an R134a system and has never been charged or connected to a refrigerant source. A Humphugger console is installed between the seats. An accessory switch panel is mounted below the dash center, functional but not fully concealed. The radio is not connected and no speakers are installed. The sun visors do not hold their raised position. Turn signals are currently non-functional.

• Seats: TMI Sport R Buckets — Front and Rear
• Console: Humphugger — 1964-72 Chevelle
• Carpet: New
• Headliner: New
• Door Panels: New Stock-Style
• Hardware: New Door and Window Handles and Locks
• Steering Column: Ididit Tilt
• Gauges: Dakota Digital VHX Direct Fit — Calibration Required for Speedometer
• Wiring: American Autowire Modern Harness
• A/C: Vintage Air R134a — Fully Installed, Never Charged or Connected to Refrigerant
• Radio: Not Connected — No Speakers Installed
• Turn Signals: Currently Non-Functional
• Sun Visors: Installed — Do Not Hold Position

Documentation & History

Single enthusiast owner since acquisition in the 1990s as a non-running 138-code shell. The build is supported by an extensive file of original purchase receipts spanning 2006 to 2022, documenting over $20,000 in parts purchases from named vendors. All paperwork transfers to the buyer.

• Title: New Mexico Original — Lien-Free
• Build Receipts: 2006–2022 — Over $20,000 Documented
• Vendors Include: Classic Performance Products, Moser Engineering, Original Parts Group, Penasco Point Parts (TMI), Summit Racing, JEGS, Pace Performance, Dynotech Driveshafts, Dakota Digital, American Autowire, Aeromotive, Griffin, East Coast Chevelle, True Connections, Muscle Factory, Inline Tube, and others
• Included: American Autowire wiring diagrams, MSD ignition tuning paperwork, FAST EFI base tune and supporting files

Mechanical Condition

The car runs, drives, shifts, idles, and starts. Fewer than 500 miles on the build. Engine, drivetrain, suspension, and brakes are all newly installed components. The undercarriage is dry, clean, and free of rust or leaks. The FAST EFI system is running on a base map and requires a final dyno tune — the idle currently pulses as a result. The Dakota Digital cluster displays a calibration prompt pending a one-time speedometer setup to the 4.11 rear gear ratio. The Vintage Air AC is fully plumbed and has never been charged or connected to a refrigerant source.

Exterior and Interior Condition

Body panels are straight and Marina Blue paint is deep and even across all surfaces. Chrome and polished trim present sharply throughout. Inside, light crease wear is visible on the driver's seat bolster. The under-dash accessory wiring module is functional but not yet fully concealed. The sun visors are installed but do not hold their raised position. The radio is not connected and no speakers are installed. Turn signals are currently non-functional.

Service and History

Single-owner build from a non-running 138-code shell purchased in the 1990s. Frame was pulled, sandblasted, and boxed before any mechanical work began. All major systems were replaced with new components during the build. Fewer than 500 miles on the completed car. The car is mechanically operational and road-driven but has not received final commissioning. Outstanding items for the next owner include: EFI dyno tune, speedometer calibration, AC charge, radio and speaker installation, turn signal diagnosis, and visor replacement. All tuning paperwork, wiring diagrams, and build receipts transfer with the vehicle.

Inspection & Test Drive

This vehicle is sold as-is. We strongly encourage all bidders to inspect the car prior to bidding. In-person inspections and test drives are available by appointment in Las Cruces, New Mexico. Live video walkthroughs are available upon request for remote bidders. Bid with confidence — what you see is what you get, and we have nothing to hide.

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Location

Las Cruces, New Mexico. Local pickup available. Enclosed and open transport coordination available for remote buyers, or buyers may arrange their own shipping.

Payment Terms

Payment accepted via certified cashier's check, wire transfer, or cash in person. No personal checks or credit cards accepted. Clean New Mexico title will transfer to the winning buyer upon receipt of cleared payment.

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PDF DOCUMENTS

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