Specification

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A rare late-model Mk2 with uprated gearbox, J-type overdrive and many unique features, with mostly in-period modifications.

1970 TRIUMPH GT6 Mk2 - Registration FHN548J
MANUFACTURED 5th August 1970
FIRST REGISTERED 14th January 1971
CHASSIS / BODY KC81893 / 76092KC
ENGINE 1972 Rebuilt 2.55 Litre Straight 6; Spin-off Oil Filter; Alloy water pump housing.
Produces approx. 106bhp of power at 4700 rpm and maximum torque of 139 lb.ft at 3000 rpm.*
Camshaft Pt. No. 308778 (Triumph 2.5PI).
Engine Number MG52078-HEBW.
CARBURETTORS Rebuilt Twin Stromberg CD150s; K&N Filters.
IGNITION New 123TUNE+ programmable (via bluetooth) electronic distributor.
Incorporates an integrated engine immobilizer securing the car with a state-of-the-art anti-theft system! 
GEARBOX Rare strengthened (heavier duty components) lightweight (alloy casing) 3-rail, built by Mike Papworth to take later overdrive as below. Number KC81742LW-MJP.
OVERDRIVE Laycock J Type, rebuilt & tested by Mike Papworth.
Number 25/115840 002322 (Ratio 25%).
DIFFERENTIAL 3.27:1 - Type D - (the Strongest)
Number FH64084, Built by Tony Lindsey-Dean, rebuilt by Mike Papworth.
FUEL SYSTEM Mostly ethanol proofed : Copper pipe throughout, flexible stainless steel braided PTFE couplings at carbs, Gates 'Barricade' pipes at rear and to fuel pump, ECO Hydrin carburettor diaphragms.
COOLING SYSTEM Radiator professionally reconditioned with a new, modern, uprated 25-fins-per-inch core.
REAR SUSPENSION Rotoflex (new genuine Metalastik couplings), rebuilt by Mike Papworth.
Spax adjustable dampers.
FRONT SUSPENSION Rebuit with racing spec. vertical links.
Koni adjustable dampers.
BRAKES

Front : Girling calipers rebuilt by Biggred; Mintex M1144 pads. Rear : Standard, all new parts.
Lockheed Servo Assistance. New brake lines throughout (Automec Copper). Earl's stainless braided brake hoses. Automec Silicone DOT 5 Brake & Clutch Fluid.

WHEELS GB (Minilite type) Alloys 5½ x 13.
TYRES Dunlop 175/70R13 82T  StreetResponse 2.
ELECTRICS Uprated 60 amp Alternator.
Completely rewired to the highest level: modern thin wall single core PVC cable uprated to take 63 amps from Alternator. Lights separately earthed. Wrapped in Easy Loom™.
MTA modular blade type fuse box (with relays & electronic indicator/hazard units, with OE clicker).
Electronic Voltage Regulator to Fuel Gauge (Water Temp. gauge by capilliary).
High-torque starter motor by WOS Performance.
FIAMM twin trumpet air horns.
Washer converted to electric using TR6 switchgear and pump.
Electronic Tachometer (original, converted by JDO Instruments) as no tacho drive on 123 Distributor.
INTERIOR Spitfire 1500 Luxury Pack Reclining Seats & Headrests; New period 'Britax' type inertia reel seat belts; Moto-Lita steering wheel; Newton Commercial carpets, headlining & door cards.
LIGHTS H4 Halogen headlights with LED Daytime Running Lights as pilots wired to extinguish when headlights used;
Additional rear stop lamps (USA Spec). All bulbs modern LEDs except Headlights & Ignition Warning Light.

* Based on Triumph 2500TC. The GT6 Mk2 originally produced 104bhp at 5300rpm and maximum torque of 117 lb.ft at 3000rpm (Motor).