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 No. KC81893 / 76092KC. The chassis has been carefully inspected, wire brushed and painted with Epoxy Mastic 121®. The body has been rebuilt with corroded sections replaced with genuine Stanpart or Heritage panels. Body cavities protected with DINITROL®.
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.
CYLINDER HEAD Stamped 218225/Casting 312388 - Standard Mk2 PI (1.260" exhaust valve ;  1.445" inlet valve)
CARBURETTORS Twin Stromberg CD150s (Rebuilt by Andrew Turner); K&N Filters.
IGNITION BPR6ES NGK Copper Core Spark Plugs; Bosch Blue Coil.
123/TUNE+ 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 i.e. Dolomite 1850 main shaft & 20 spline output shaft) lightweight (alloy casing) 3-rail, built by Mike Papworth to take later J type overdrive as below. Number KC81742LW-MJP.
OVERDRIVE Laycock J Type, supplied, 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 All E10 ethanol proofed : solid pipes are Copper, flexible fuel hoses are Gates 'Barricade', ECO Hydrin carburettor diaphragms, E10 proof Fuel pump, tank sender washer & fuel line filter.
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.
LADEN WEIGHT Approx 21.5cwt / 2408 lbs / 1092 kg (as 1969 Motor Road Test)

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 Alloys (the first 'Minilite' copy; KBA certified) 5½ x 13; ET18 Offset. Original spare (refurbished).
TYRES Dunlop 175/70R13 82T  StreetResponse 2 fitted to all four wheels, identical 155/70R13 tyre fitted to spare.
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).