This award-winning 1967 Chevrolet Corvette Convertible is an exceptionally rare example, one of just 267 produced that year with the RPO J56 Special Heavy Duty Brakes option. Introduced in 1966, the J56 option added $342.30 to the bottom line of a new Corvette; in 1967, that was more than the additional cost of every production engine option, but for this example’s L71 427/435 HP tri-power big-block V-8, it was necessary. Necessitated by the extra front weight bias inherent with the big-block, the J56 option incorporated a proportioning valve in the line to the rear to reduce rear wheel lockup under severe braking. The J56 package added other advances, including rayon-reinforced flex hoses, larger semi-metallic linings fused to strengthened nickel alloy backing plates, two retaining clips per wheel instead of one, and iron braces for the front calipers. Produced on December 20, 1966, and delivered new by Lou Bachrodt Chevrolet in Rockford, Illinois (dealer code 61 in zone 017), per the official NCRS/GM shipping data records, this 1967 tri-power convertible’s matching-numbers L71 engine is backed by a Muncie M21 4-speed manual transmission and Positraction rear end with 4.11:1 gearing. Its Goodwood Green paint, Saddle interior and white soft top are a popular combination, in this case augmented with side exhaust and 7.75x15 redline tires on optional bolt-on finned aluminum wheels for the ultimate big-block presentation. Additionally optioned with power steering, transistorized ignition, headrests, telescopic steering column and shoulder harnesses, it offers most all factory-correct-type components including the spare, jack, jack tools, clear floor mats, shocks, seat belts, washer system, tar top battery, shifter, shielding, braided wires, air cleaner, alternator, distributor, hoses, hose clamps, gas door assembly, Bowtie mirror and glovebox door. It has won Bloomington Certification, NCRS Top Flight, Geneva Concours d'Elegance and Hawk Corvette Unlimited awards, and it is offered with excellent documentation that includes the owner’s manual, sales brochure and the all-important tank sticker.