Triumph TR6 1969-76 Specifications

J.B. Zimmerman / From the Driver's Manuals

1969 TR6

First Commission Number: CC25001
Engine: 6-cylinder in-line OHV
- Cylinder Bore: 74.7mm (2.94")
- Crankshaft Stroke: 95mm (3.74")
- Piston Area: 263 sq. cm. (40.7 sq. in.)
- Cubic Capacity: 2498 cc (152 cu.in.)
- Compression Ratio: 8.5:1
- Valve Rocker Clearance:(cold) 0.25mm (.010")
- Valve Timing: inlet, exhaust equally open at TDC
- Horsepower: 104BHP/4500RPM
Ignition System:
- Contact Breaker Gap: 0.4mm(.015") dwell angle 34-38 deg
- Spark Plugs: Champion N12Y
- Spark Plug Gap: 0.63mm (.025")
- Firing Order: 1-5-3-6-2-4
- Ignition Timing (Static): 10 deg. BTDC (idle: 4 deg. ATDC)
Capacities:
- Fuel Tank: 13.5 gal. (51 liters)
- Engine Sump: 9.64 pints (4.52 liters)
- Gearbox: 2.4 pints (1.13 liters)
- Gearbox w/Overdrive: 4.2 pints (2.0 liters)
- Rear Axle: 1.8 pints (0.85 liters)
- Cooling System: 13.2 pints (6.2 liters)
Exterior Dimensions:
- Overall Length: 12' 11" (3937mm)
- Overall Width: 4' 10" (1470mm)
- Overall Height: 4' 2" (1270mm)
Approximate Weight:
- Dry, Stock config: 2280 lbs. (1034 kg.)
- With full fluids: 2390 lbs. (1084 kg.)
Gearbox:
- Type: 4 fwd, 1 reverse; fwd synchromesh
- Ratios to 1: 4:1.00/3:1.33/2:2.01/1:3.14/R:3.22
- Overall ratios: 4:3.70/3:4.92/2:7.44/1:11.62/R:11.9
- Overdrive (optional): A-type Laycock, gears 2,3,4 0.82:1
Rear Axle: Semi-floating axle shafts; Hypoid bevel gears
- Ratio: 3.7:1 (4.1:1 w/overdrive option)
Chassis:
- Wheelbase: 7' 4" (2240mm)
- Track, front: 4' 2.25" (1276mm)
- Track, rear: 4' 1.75" (1264mm)
- Ground Clearance 6 " (152mm)
- Turning Circle: 33 ft. (10.1 m)
- Steering Unit: Rack&Pinion, 3.25 turns lock to lock
Wheels:
- Size: Steel Disc, 5.25" wide x 15" dia.
- Tires: 185 SR15 Press: front 20lb/rear 24lb

1970 TR6

First Commission Number: CC50001
Engine: 6-cylinder in-line OHV
- Cylinder Bore: 74.7mm (2.94")
- Crankshaft Stroke: 95mm (3.74")
- Piston Area: 263 sq. cm. (40.7 sq. in.)
- Cubic Capacity: 2498 cc (152 cu.in.)
- Compression Ratio: 8.5:1
- Valve Rocker Clearance:(cold) 0.25mm (.010")
- Valve Timing: inlet, exhaust equally open at TDC
- Horsepower: 104BHP/4500RPM
Ignition System:
- Contact Breaker Gap: 0.4mm(.015") dwell angle 34-38 deg
- Spark Plugs: Champion N12Y
- Spark Plug Gap: 0.63mm (.025")
- Firing Order: 1-5-3-6-2-4
- Ignition Timing (Static): 10 deg. BTDC (idle: 4 deg. ATDC)
Capacities:
- Fuel Tank: 13.5 gal. (51 liters)
- Engine Sump: 9.64 pints (4.52 liters)
- Gearbox: 2.4 pints (1.13 liters)
- Gearbox w/Overdrive: 4.2 pints (2.0 liters)
- Rear Axle: 1.8 pints (0.85 liters)
- Cooling System: 13.2 pints (6.2 liters)
Exterior Dimensions:
- Overall Length: 12' 11" (3937mm)
- Overall Width: 4' 10" (1470mm)
- Overall Height: 4' 2" (1270mm)
Approximate Weight:
- Dry, Stock config: 2280 lbs. (1034 kg.)
- With full fluids: 2390 lbs. (1084 kg.)
Gearbox:
- Type: 4 fwd, 1 reverse; fwd synchromesh
- Ratios to 1: 4:1.00/3:1.33/2:2.01/1:3.14/R:3.22
- Overall ratios: 4:3.70/3:4.92/2:7.44/1:11.62/R:11.9
- Overdrive (optional): A-type Laycock, gears 2,3,4 0.82:1
Rear Axle: Semi-floating axle shafts; Hypoid bevel gears
- Ratio: 3.7:1 (4.1:1 w/overdrive option)
Chassis:
- Wheelbase: 7' 4" (2240mm)
- Track, front: 4' 2.25" (1276mm)
- Track, rear: 4' 1.75" (1264mm)
- Ground Clearance 6 " (152mm)
- Turning Circle: 33 ft. (10.1 m)
- Steering Unit: Rack&Pinion, 3.25 turns lock to lock
Wheels:
- Size: Steel Disc, 5.25" wide x 15" dia.
- Tires: 185 SR15 Press: front 20lb/rear 24lb

1971 TR6

First Commission Number: CC58298
Engine: 6-cylinder in-line OHV
- Cylinder Bore: 74.7mm (2.94")
- Crankshaft Stroke: 95mm (3.74")
- Piston Area: 263 sq. cm. (40.7 sq. in.)
- Cubic Capacity: 2498 cc (152 cu.in.)
- Compression Ratio: 8.5:1
- Valve Rocker Clearance:(cold) 0.25mm (.010")
- Valve Timing: inlet, exhaust equally open at TDC
- Horsepower: 104BHP/4500RPM
Ignition System:
- Contact Breaker Gap: 0.4mm(.015") dwell angle 34-38 deg
- Spark Plugs: Champion N12Y
- Spark Plug Gap: 0.63mm (.025")
- Firing Order: 1-5-3-6-2-4
- Ignition Timing (Static): 10 deg. BTDC (idle: 4 deg. ATDC)
Capacities:
- Fuel Tank: 13.5 gal. (51 liters)
- Engine Sump: 9.64 pints (4.52 liters)
- Gearbox: 2.4 pints (1.13 liters)
- Gearbox w/Overdrive: 4.2 pints (2.0 liters)
- Rear Axle: 1.8 pints (0.85 liters)
- Cooling System: 13.2 pints (6.2 liters)
Exterior Dimensions:
- Overall Length: 12' 11" (3937mm)
- Overall Width: 4' 10" (1470mm)
- Overall Height: 4' 2" (1270mm)
Approximate Weight:
- Dry, Stock config: 2280 lbs. (1034 kg.)
- With full fluids: 2390 lbs. (1084 kg.)
Gearbox:
- Type: 4 fwd, 1 reverse; fwd synchromesh
- Ratios to 1: 4:1.00/3:1.33/2:2.01/1:3.14/R:3.22
- Overall ratios: 4:3.70/3:4.92/2:7.44/1:11.62/R:11.9
- Overdrive (optional): A-type Laycock, gears 2,3,4 0.82:1
Rear Axle: Semi-floating axle shafts; Hypoid bevel gears
- Ratio: 3.7:1 (4.1:1 w/overdrive option)
Chassis:
- Wheelbase: 7' 4" (2240mm)
- Track, front: 4' 2.25" (1276mm)
- Track, rear: 4' 1.75" (1264mm)
- Ground Clearance 6 " (152mm)
- Turning Circle: 33 ft. (10.1 m)
- Steering Unit: Rack&Pinion, 3.25 turns lock to lock
Wheels:
- Size: Steel Disc, 5.25" wide x 15" dia.
- Tires: 185 SR15 Press: front 20lb/rear 24lb

1972 TR6

First Commission Number: CC75001
Engine: 6-cylinder in-line OHV
- Cylinder Bore: 74.7mm (2.94")
- Crankshaft Stroke: 95mm (3.74")
- Piston Area: 263 sq. cm. (40.7 sq. in.)
- Cubic Capacity: 2498 cc (152 cu.in.)
- Compression Ratio: 7.75:1
- Valve Rocker Clearance:(cold) 0.25mm (.010")
- Valve Timing: inlet, exhaust equally open at TDC
- Horsepower: 106BHP/4900RPM
Ignition System:
- Contact Breaker Gap: 0.4mm(.015") dwell angle 34-38 deg
- Spark Plugs: Champion N12Y
- Spark Plug Gap: 0.63mm (.025")
- Firing Order: 1-5-3-6-2-4
- Ignition Timing (Static): 10 deg. BTDC
Capacities:
- Fuel Tank: 13.5 gal. (51 liters)
- Engine Sump: 9.64 pints (4.52 liters)
- Gearbox: 2.4 pints (1.13 liters)
- Gearbox w/Overdrive: 4.2 pints (2.0 liters)
- Rear Axle: 3.0 pints
- Cooling System: 13.2 pints (6.2 liters)
Exterior Dimensions:
- Overall Length: 12' 11" (3937mm)
- Overall Width: 4' 10" (1470mm)
- Overall Height: 4' 2" (1270mm)
Approximate Weight:
- Dry, Stock config: 2280 lbs. (1034 kg.)
- With full fluids: 2390 lbs. (1084 kg.)
Gearbox:
- Type: 4 fwd, 1 reverse; fwd synchromesh
- Ratios to 1: 4:1.00/3:1.33/2:2.01/1:3.14/R:3.22
- Overall ratios: 4:3.70/3:4.92/2:7.44/1:11.62/R:11.9
- Overdrive (optional): A-type Laycock, gears 2,3,4 0.82:1
Rear Axle: Semi-floating axle shafts; Hypoid bevel gears
- Ratio: 3.7:1 (4.1:1 w/overdrive option)
Chassis:
- Wheelbase: 7' 4" (2240mm)
- Track, front: 4' 2.25" (1276mm)
- Track, rear: 4' 1.75" (1264mm)
- Ground Clearance 6 " (152mm)
- Turning Circle: 33 ft. (10.1 m)
- Steering Unit: Rack&Pinion, 3.25 turns lock to lock
Wheels:
- Size: Steel Disc, 5.25" wide x 15" dia.
- Tires: 185 SR15 Press: front 20lb/rear 24lb

1973 TR6

First Commission Number: CF1
Engine: 6-cylinder in-line OHV
- Cylinder Bore: 74.7mm (2.94")
- Crankshaft Stroke: 95mm (3.74")
- Piston Area: 263 sq. cm. (40.7 sq. in.)
- Cubic Capacity: 2498 cc (152 cu.in.)
- Compression Ratio: 7.75:1
- Valve Rocker Clearance:(cold) 0.25mm (.010")
- Valve Timing: inlet, exhaust equally open at TDC
- Horsepower: 106BHP/4900RPM
Ignition System:
- Contact Breaker Gap: 0.4mm(.015") dwell angle 34-38 deg
- Spark Plugs: Champion N12Y
- Spark Plug Gap: 0.63mm (.025")
- Firing Order: 1-5-3-6-2-4
- Ignition Timing (Static): 12 deg. BTDC
Capacities:
- Fuel Tank: 11.4 gal. (43 liters)
- Engine Sump: 10.8 pints
- Gearbox: 2.4 pints (1.13 liters)
- Gearbox w/Overdrive: 3.2 pints (1.5 liters)
- Rear Axle: 2.7 pints
- Cooling System: 13.2 pints (6.2 liters)
Exterior Dimensions:
- Overall Length: 12' 11" (3937mm)
- Overall Width: 4' 10" (1470mm)
- Overall Height: 4' 2" (1270mm)
Approximate Weight:
- Dry, Stock config: 2280 lbs. (1034 kg.)
- With full fluids: 2390 lbs. (1084 kg.)
Gearbox:
- Type: 4 fwd, 1 reverse; fwd synchromesh
- Ratios to 1: 4:1.00/3:1.33/2:2.01/1:3.14/R:3.22
- Overall ratios: 4:3.70/3:4.92/2:7.44/1:11.62/R:11.9
- Overdrive (optional): J-type Laycock, gears 3,4: 0.82:1
Rear Axle: Semi-floating axle shafts; Hypoid bevel gears
- Ratio: 3.7:1
Chassis:
- Wheelbase: 7' 4" (2240mm)
- Track, front: 4' 2.25" (1276mm)
- Track, rear: 4' 1.75" (1264mm)
- Ground Clearance 6 " (152mm)
- Turning Circle: 34 ft. (10.4 m)
- Steering Unit: Rack&Pinion, 3.25 turns lock to lock
Wheels:
- Size: Steel Disc, 5.25" wide x 15" dia.
- Tires: 185 SR15 Press: front 20lb/rear 24lb

1974 TR6

First Commission Number: CF12501
Engine: 6-cylinder in-line OHV
- Cylinder Bore: 74.7mm (2.94")
- Crankshaft Stroke: 95mm (3.74")
- Piston Area: 263 sq. cm. (40.7 sq. in.)
- Cubic Capacity: 2498 cc (152 cu.in.)
- Compression Ratio: 7.5:1
- Valve Rocker Clearance:(cold) 0.25mm (.010")
- Valve Timing: inlet, exhaust equally open at TDC
- Horsepower: 101BHP/4900RPM
Ignition System:
- Contact Breaker Gap: 0.4mm(.015") dwell angle 34-38 deg
- Spark Plugs: Champion N9Y
- Spark Plug Gap: 0.63mm (.025")
- Firing Order: 1-5-3-6-2-4
- Ignition Timing (Static): 10 deg. BTDC
Capacities:
- Fuel Tank: 11.4 gal. (43 liters)
- Engine Sump: 10.8 pints
- Gearbox: 2.4 pints (1.13 liters)
- Gearbox w/Overdrive: 3.2 pints (1.5 liters)
- Rear Axle: 2.7 pints
- Cooling System: 13.2 pints (6.2 liters)
Exterior Dimensions:
- Overall Length: 13' 6.125" (4118mm)
- Overall Width: 4' 10" (1470mm)
- Overall Height: 4' 2" (1270mm)
Approximate Weight:
- Dry, Stock config: 2280 lbs. (1034 kg.)
- With full fluids: 2390 lbs. (1084 kg.)
Gearbox:
- Type: 4 fwd, 1 reverse; fwd synchromesh
- Ratios to 1: 4:1.00/3:1.39/2:2.10/1:2.99/R:3.37
- Overall ratios: 4:3.70/3:5.13/2:7.77/1:11.08/R:12.47
- Overdrive (optional): J-type Laycock, gears 3,4: 0.82:1
Rear Axle: Semi-floating axle shafts; Hypoid bevel gears
- Ratio: 3.7:1
Chassis:
- Wheelbase: 7' 4" (2240mm)
- Track, front: 4' 2.25" (1276mm)
- Track, rear: 4' 1.75" (1264mm)
- Ground Clearance 6 " (152mm)
- Turning Circle: 34 ft. (10.4 m)
- Steering Unit: Rack&Pinion, 3.25 turns lock to lock
Wheels:
- Size: Steel Disc, 5.25" wide x 15" dia.
- Tires: 185 SR15 Press: front 20lb/rear 24lb

1975 TR6

First Commission Number: CF35001
Engine: 6-cylinder in-line OHV
- Cylinder Bore: 74.7mm (2.94")
- Crankshaft Stroke: 95mm (3.74")
- Piston Area: 263 sq. cm. (40.7 sq. in.)
- Cubic Capacity: 2498 cc (152 cu.in.)
- Compression Ratio: 7.5:1
- Valve Rocker Clearance:(cold) 0.25mm (.010")
- Valve Timing: inlet, exhaust equally open at TDC
- Horsepower: 101BHP/4900RPM
Ignition System:
- Contact Breaker Gap: 0.4mm(.015") dwell angle 34-38 deg
- Spark Plugs: Champion N9Y
- Spark Plug Gap: 0.63mm (.025")
- Firing Order: 1-5-3-6-2-4
- Ignition Timing (Static): 10 deg. BTDC
Capacities:
- Fuel Tank: 11.4 gal. (43 liters)
- Engine Sump: 10.8 pints
- Gearbox: 2.4 pints (1.13 liters)
- Gearbox w/Overdrive: 3.2 pints (1.5 liters)
- Rear Axle: 2.7 pints
- Cooling System: 13.2 pints (6.2 liters)
Exterior Dimensions:
- Overall Length: 163.6" (4155mm)
- Overall Width: 4' 10" (1470mm)
- Overall Height: 4' 2" (1270mm)
Approximate Weight:
- Dry, Stock config: 2438 lbs. (1106 kg.)
- With full fluids: 2624 lbs. (1190 kg.)
Gearbox:
- Type: 4 fwd, 1 reverse; fwd synchromesh
- Ratios to 1: 4:1.00/3:1.39/2:2.10/1:2.99/R:3.37
- Overall ratios: 4:3.70/3:5.13/2:7.77/1:11.08/R:12.47
- Overdrive (optional): J-type Laycock, gears 3,4: 0.82:1
Rear Axle: Semi-floating axle shafts; Hypoid bevel gears
- Ratio: 3.7:1
Chassis:
- Wheelbase: 7' 4" (2240mm)
- Track, front: 4' 2.25" (1276mm)
- Track, rear: 4' 1.75" (1264mm)
- Ground Clearance 6 " (152mm)
- Turning Circle: 34 ft. (10.4 m)
- Steering Unit: Rack&Pinion, 3.25 turns lock to lock
Wheels:
- Size: Steel Disc, 5.25" wide x 15" dia.
- Tires: 185 SR15 Press: front 20lb/rear 24lb

1976 TR6

First Commission Number: CF500001
Engine: 6-cylinder in-line OHV
- Cylinder Bore: 74.7mm (2.94")
- Crankshaft Stroke: 95mm (3.74")
- Piston Area: 263 sq. cm. (40.7 sq. in.)
- Cubic Capacity: 2498 cc (152 cu.in.)
- Compression Ratio: 7.5:1
- Valve Rocker Clearance:(cold) 0.25mm (.010")
- Valve Timing: inlet, exhaust equally open at TDC
- Horsepower: 101BHP/4900RPM
Ignition System:
- Contact Breaker Gap: 0.4mm(.015") dwell angle 34-38 deg
- Spark Plugs: Champion N9Y
- Spark Plug Gap: 0.63mm (.025")
- Firing Order: 1-5-3-6-2-4
- Ignition Timing (Static): 10 deg. BTDC
Capacities:
- Fuel Tank: 11.4 gal. (43 liters)
- Engine Sump: 10.8 pints
- Gearbox: 2.4 pints (1.13 liters)
- Gearbox w/Overdrive: 3.2 pints (1.5 liters)
- Rear Axle: 2.7 pints
- Cooling System: 13.2 pints (6.2 liters)
Exterior Dimensions:
- Overall Length: 163.6" (4155mm)
- Overall Width: 4' 10" (1470mm)
- Overall Height: 4' 2" (1270mm)
Approximate Weight:
- Dry, Stock config: 2438 lbs. (1106 kg.)
- With full fluids: 2624 lbs. (1190 kg.)
Gearbox:
- Type: 4 fwd, 1 reverse; fwd synchromesh
- Ratios to 1: 4:1.00/3:1.39/2:2.10/1:2.99/R:3.37
- Overall ratios: 4:3.70/3:5.13/2:7.77/1:11.08/R:12.47
- Overdrive (optional): J-type Laycock, gears 3,4: 0.82:1
Rear Axle: Semi-floating axle shafts; Hypoid bevel gears
- Ratio: 3.7:1
Chassis:
- Wheelbase: 7' 4" (2240mm)
- Track, front: 4' 2.25" (1276mm)
- Track, rear: 4' 1.75" (1264mm)
- Ground Clearance 6 " (152mm)
- Turning Circle: 34 ft. (10.4 m)
- Steering Unit: Rack&Pinion, 3.25 turns lock to lock
Wheels:
- Size: Steel Disc, 5.25" wide x 15" dia.
- Tires: 185 SR15 Press: front 20lb/rear 24lb

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