1967 Triumph TR4A (IRS)

Triumph TR4A

This 1967 Triumph TR4A was disassembled and refurbished in Triumph Racing Green over black leather upholstery in the early 2000s. Work performed in 2020 includes an overhaul of the 2,138cc inline-four, a Toyota five-speed manual transmission conversion, and fitting dual SU HS6 carburetors, an Offenhauser valve cover, an electric cooling fan, a spin-on oil filter adaptor, and solid steering rack mounts. Equipment includes a black top boot, 15″ Panasport-style center-lock wheels, front disc brakes, a solid rear axle, a push-button British Leyland radio, a cabin heater, and bucket seats.

The TR4A was built from 1965 to 1968 and featured a revised grille and a widened chassis compared with earlier TR4 models. This example was finished in Triumph Racing Green (25) from the factory, the body was removed from the frame during the aforementioned refurbishment. Exterior details include a black top boot, bullet-style door mirrors, a reverse light, a flip-up fuel-filler cap, windshield washers, turn signals on the front fender sides, and bright bumpers with over riders.

The 15″ Panasport-style center-lock wheels feature machined lips and are mounted with 165-series Vredestein Sprint Classic tires that were installed in 2021. Brake and suspension refurbishments included rebuilding the rear shock absorbers and front spring perches along with replacing the rear axle U-bolts, springs, front brake pads, rear brake shoes, and rear wheel cylinders. The hydraulic fluid in the brake and clutch systems was most recently changed in 2020.

The reclining TR6-specification bucket seats are trimmed in black leather with perforated inserts and white piping, and additional appointments include a custom book-matched oak veneer dashboard insert, an inflatable driver-side lumbar support, a push-button British Leyland radio, a locking glovebox, a cabin heater, seat belts, and replacement door panels, carpeting, and interior trim.

A leather wrap by Wheel Skins protects the banjo-style steering wheel, and Jaeger instrumentation consists of a 120-mph speedometer and a 6k-rpm tachometer, while gauges for coolant temperature, oil pressure, and fuel level are located at the center of the dash alongside a Lucas ammeter. The five-digit odometer has rolled over and now shows 308 miles. The upper steering column bushings have been replaced, and solid steering rack mounts were fitted in 2023.

The 2,138cc inline-four was overhauled in 2020 with 87mm pistons and replacement liners as well as a re-ground camshaft by Iskenderian. During the build, the block was line-bored, the crankshaft was balanced, a “Mad Marx” Viton rear main seal and hardened valve seats were fitted, and the timing chain, oil pump, tappets, and valve guides were replaced. Additional modifications include an Offenhauser aluminum valve cover, draft-tube-style crankcase ventilation, a spin-on oil filter adaptor, a billet aluminum water pump, a GM alternator, a high-torque starter, a narrow fan belt conversion, a revised heater valve, a Revotec electric cooling fan, and dual SU HS6 carburetors. The distributor was rebuilt and re-curved in 2020 by British Vacuum Unit of West Milford, New Jersey. The Toyota W58 five-speed manual transmission was rebuilt by Quantum Mechanics Ltd of Oxford, Connecticut, before it was installed with an HVDA conversion kit, a lightweight flywheel,