Crankshaft - 5 main bearing engine

new item

exchange

new item

US specification from September 1974 (low compression engines)

camshaft

camshaft

attachment lock tab camshaft

hydraulic

hydraulic

timing chain tensioner

for tensioner

timing chain tensioner attachment

timing chain tensioner

length: 8.3/4"

18GB to 18GG engines, up to October 1971

with 2.3/8" length

18GB to 18GG engines, up to October 1971

length: 10.5"

MGB with 18V engines (from August 1971)

length: 39.59 mm

MGB with 18V engines (from August 1971)

camshaft

camshaft

duplex

18GB to 18GG engines, up to October 1971

double row

MGB to October 1971 with 18GB, 18GF, 18GG, 18GH and 18GK engines

uprated double row endless chain with 52 pitches

MGB to October 1971 with 18GB, 18GF, 18GG, 18GH and 18GK engines

simplex

18V engines from October 1971

single row

MGB from October 1971 with 18V engines

uprated single row endless chain with 52 pitches

MGB from October 1971 with 18V engines

set of 3

standard size. Specifications: 1.789 cc engine, 4-ring short skirt circlip piston, standard bore size: 3.1595", compression ratio: 8.75:1

MGB with 18GB to 18GG and 18 GK engines (October 1964 to October 1971) - identification: bottom timing mark on front cover

+0.020" oversize. Specifications: 1.789 cc engine, 4-ring short skirt circlip piston, standard bore size: 3.1595", compression ratio: 8.75:1

MGB with 18GB to 18GG and 18 GK engines (October 1964 to October 1971) - identification: bottom timing mark on front cover

+0.030" oversize. Specifications: 1.789 cc engine, 4-ring short skirt circlip piston, standard bore size: 3.1595", compression ratio: 8.75:1

MGB with 18GB to 18GG and 18 GK engines (October 1964 to October 1971) - identification: bottom timing mark on front cover

+0.040" oversize. Specifications: 1.789 cc engine, 4-ring short skirt circlip piston, standard bore size: 3.1595", compression ratio: 8.75:1

MGB with 18GB to 18GG and 18 GK engines (October 1964 to October 1971) - identification: bottom timing mark on front cover

+0.060" oversize. Specifications: 1.789 cc engine, 4-ring short skirt circlip piston, standard bore size: 3.1595", compression ratio: 8.75:1

MGB with 18GB to 18GG and 18 GK engines (October 1964 to October 1971) - identification: bottom timing mark on front cover

standard size. Specifications: 1.789 cc engine, 3-ring press fit piston, standard bore size: 3.1595", compression ratio: 8.75:1

MGB with 18V engines (from October 1971). Identification: top timing mark on front cover

+0.020" oversize. Specifications: 1.789 cc engine, 3-ring press fit piston, standard bore size: 3.1595", compression ratio: 8.75:1

MGB with 18V engines (from October 1971). Identification: top timing mark on front cover

+0.030" oversize. Specifications: 1.789 cc engine, 3-ring press fit piston, standard bore size: 3.1595", compression ratio: 8.75:1

MGB with 18V engines (from October 1971). Identification: top timing mark on front cover

+0.040" oversize. Specifications: 1.789 cc engine, 3-ring press fit piston, standard bore size: 3.1595", compression ratio: 8.75:1

MGB with 18V engines (from October 1971). Identification: top timing mark on front cover

+0.060" oversize. Specifications: 1.789 cc engine, 3-ring press fit piston, standard bore size: 3.1595", compression ratio: 8.75:1

MGB with 18V engines (from October 1971). Identification: top timing mark on front cover

standard size. Specifications: 1.789 cc engine, 3-ring press fit piston, standard bore size: 3.1595", compression ratio: 8.0:1

MGB USA exports with 18V engines (from September 1974). Identification: top timing mark on front cover

+0.020" oversize. Specifications: 1.789 cc engine, 3-ring press fit piston, standard bore size: 3.1595", compression ratio: 8.0:1

MGB USA exports with 18V engines (from September 1974). Identification: top timing mark on front cover

+0.040" oversize. Specifications: 1.789 cc engine, 3-ring press fit piston, standard bore size: 3.1595", compression ratio: 8.0:1

MGB USA exports with 18V engines (from September 1974). Identification: top timing mark on front cover

standard size. Specifications: 1.789 cc engine, 4-ring short skirt circlip piston, standard bore size: 3.1595", compression ratio: 8.75:1

MGB with 18GB to 18GG and 18 GK engines (October 1964 to October 1971). Identification: bottom timing mark on front cover

+0.020" oversize. Specifications: 1.789 cc engine, 4-ring short skirt circlip piston, standard bore size: 3.1595", compression ratio: 8.75:1

MGB with 18GB to 18GG and 18 GK engines (October 1964 to October 1971). Identification: bottom timing mark on front cover

+0.030" oversize. Specifications: 1.789 cc engine, 4-ring short skirt circlip piston, standard bore size: 3.1595", compression ratio: 8.75:1

MGB with 18GB to 18GG and 18 GK engines (October 1964 to October 1971). Identification: bottom timing mark on front cover

+0.040" oversize. Specifications: 1.789 cc engine, 4-ring short skirt circlip piston, standard bore size: 3.1595", compression ratio: 8.75:1

MGB with 18GB to 18GG and 18 GK engines (October 1964 to October 1971). Identification: bottom timing mark on front cover

standard size. Specifications: 1.789 cc engine, 3-ring press fit piston, standard bore size: 3.1595", compression ratio: 9.0:1

MGB with 18V engines (from October 1971). Identification: top timing mark on front cover

+0.020" oversize. Specifications: 1.789 cc engine, 3-ring press fit piston, standard bore size: 3.1595", compression ratio: 9.0:1

MGB with 18V engines (from October 1971). Identification: top timing mark on front cover

+0.030" oversize. Specifications: 1.789 cc engine, 3-ring press fit piston, standard bore size: 3.1595", compression ratio: 9.0:1

MGB with 18V engines (from October 1971). Identification: top timing mark on front cover

+0.040" oversize. Specifications: 1.789 cc engine, 3-ring press fit piston, standard bore size: 3.1595", compression ratio: 9.0:1

MGB with 18V engines (from October 1971). Identification: top timing mark on front cover

+0.060" oversize. Specifications: 1.789 cc engine, 3-ring press fit piston, standard bore size: 3.1595", compression ratio: 9.0:1

MGB with 18V engines (from October 1971). Identification: top timing mark on front cover

standard size. Specifications: 1.789 cc engine, 3-ring press fit piston, standard bore size: 3.1595", compression ratio: 8.0:1

MGB USA exports with 18V engines (from September 1974). Identification: top timing mark on front cover

+0.040" oversize. Specifications: 1.789 cc engine, 3-ring press fit piston, standard bore size: 3.1595", compression ratio: 8.0:1

MGB USA exports with 18V engines (from September 1974). Identification: top timing mark on front cover

standard size. Fits to 4 ring pistons with 3 compression rings and 1 oil ring

MGB with 18GB to 18GG and 18 GK engines (October 1964 to October 1971). Identification: bottom timing mark on front cover

+0.020" oversize. Fits to 4 ring pistons with 3 compression rings and 1 oil ring

MGB with 18GB to 18GG and 18 GK engines (October 1964 to October 1971). Identification: bottom timing mark on front cover

+0.030" oversize. Fits to 4 ring pistons with 3 compression rings and 1 oil ring

MGB with 18GB to 18GG and 18 GK engines (October 1964 to October 1971). Identification: bottom timing mark on front cover

+0.040" oversize. Fits to 4 ring pistons with 3 compression rings and 1 oil ring

MGB with 18GB to 18GG and 18 GK engines (October 1964 to October 1971). Identification: bottom timing mark on front cover

+0.060" oversize. Fits to 4 ring pistons with 3 compression rings and 1 oil ring

MGB with 18GB to 18GG and 18 GK engines (October 1964 to October 1971). Identification: bottom timing mark on front cover

standard size. Fits to 3 ring pistons with 2 compression rings and 1 oil ring

MGB with 18V engines (from October 1971). Identification: top timing mark on front cover

+0.020" oversize. Fits to 3 ring pistons with 2 compression rings and 1 oil ring

MGB with 18V engines (from October 1971). Identification: top timing mark on front cover

+0.030" oversize. Fits to 3 ring pistons with 2 compression rings and 1 oil ring

MGB with 18V engines (from October 1971). Identification: top timing mark on front cover

+0.040" oversize. Fits to 3 ring pistons with 2 compression rings and 1 oil ring

MGB with 18V engines (from October 1971). Identification: top timing mark on front cover

+0.060" oversize. Fits to 3 ring pistons with 2 compression rings and 1 oil ring

MGB with 18V engines (from October 1971). Identification: top timing mark on front cover

sizes: 80.251 x 82.918 x 143.154 mms

reconditioned, in exchange

MGB with 18GB to 18GG engines (October 1964 to October 1969). Identification: bottom timing mark on front cover

MGB with 18GB to 18GG engines (October 1964 to October 1969). Identification: bottom timing mark on front cover

con rod

MGB with 18GB to 18GG engines (October 1964 to October 1969). Identification: bottom timing mark on front cover

MGB with 18GB to 18GG engines (October 1964 to October 1969). Identification: bottom timing mark on front cover

new item

MGB with 18GG and 18GK engines (October 1969 to October 1971 - can also be used for earlier engines from October 1964 onwards if all 4 con rods are replaced). Identification: bottom timing mark on front cover

MGB with 18GG and 18GK engines (October 1969 to October 1971). Identification: bottom timing mark on front cover

with flat top - reconditioned, in exchange

MGB with 18V engines (from October 1971). Identification: top timing mark on front cover

with round top - reconditioned, in exchange

MGB with 18V engines (from October 1971). Identification: top timing mark on front cover

18GG engines from October 1969 and all 18V engines

con rod bolt

18GG engines from October 1969 and all 18V engines

exchange. Reground without bearings

Manual transmission

outright. Reground complete with bearings

Manual transmission

crankshaft - standard size

crankshaft, +0.020" oversize

crankshaft, +0.0050" oversize

crankshaft pulley attachment

crankshaft - variant with harmonic balancer

18GB to 18GG engines, up to October 1971

crankshaft - variant with armonic balancer and 130 mm diameter

MGB with 18V engines from August 1971 to September 1974: Roadster from GHN5-258001 to GHN5-339965, GT from GHD5-258004 to GHD5-360069

crankshaft

18GB engines from 11851, 18GD engines on

duplex

18GB to 18GG engines, up to October 1971

simplex specification

18V engines from October 1971

18GB to 18GG engines, up to October 1971

crankshaft

18V engines from October 1971

crankshaft

with standard size - shaft diameter of the standard bearing: 1.876"

with +0.010" oversize - shaft diameter of the standard bearing: 1.876"

with +0.020" oversize - shaft diameter of the standard bearing: 1.876"

with +0.030" oversize - shaft diameter of the standard bearing: 1.876"

with +0.040" oversize - shaft diameter of the standard bearing: 1.876"

with +0.060" oversize - shaft diameter of the standard bearing: 1.876"

with standard size - shaft diameter of the standard bearing: 1.876"

with +0.010" oversize - shaft diameter of the standard bearing: 1.876"

with +0.030" oversize - shaft diameter of the standard bearing: 1.876"

with +0.040" oversize - shaft diameter of the standard bearing: 1.876"

with standard size - shaft diameter of the standard bearing: 2.127"

with +0.010" oversize - shaft diameter of the standard bearing: 2.127"

with +0.020" oversize - shaft diameter of the standard bearing: 2.127"

with +0.030" oversize - shaft diameter of the standard bearing: 2.127"

with +0.040" oversize - shaft diameter of the standard bearing: 2.127"

with +0.060" oversize - shaft diameter of the standard bearing: 2.127"

with 27.3 cm diameter. For vehicles with 5 main bearing engine and 3-synchro gearbox - reconditioned, in exchange

MGB from October 1964 to October 1967 with 18GB engines - Roadster from GHN3-48767 to GHN3-138360, GT from GHD3-71933 to GHD3-137795

with 29 cm diameter. For vehicles with 4-synchro gearbox - reconditioned, in exchange

MGB from November 1967 with 18GD, 18GF, 18GG, 18GH, 18GJ, 18GK and 18V engines - Roadster from GHN4-138401, GT from GHD4-139471

new item with 29 cm diameter. For vehicles with 4-synchro gearbox

MGB from November 1967 with 18GD, 18GF, 18GG, 18GH, 18GJ, 18GK and 18V engines - Roadster from GHN4-138401, GT from GHD4-139471

flywheel - number of teeth: 120, diameter: 10.3/4" thickness: 5/8"

MGB from October 1964 to October 1967 with 18GB engines - Roadster from GHN3-48767 to GHN3-138360, GT from GHD3-71933 to GHD3-137795

flywheel

MGB from November 1967 with 18GD, 18GF, 18GG, 18GH, 18GJ, 18GK and 18V engines - Roadster from GHN4-138401, GT from GHD4-139471

clutch cover to flywheel

Manual transmission

flywheel to crankshaft

Manual transmission

flywheel

Manual transmission

for vehicles with automatic transmission - reconditioned, in exchange

Automatic transmission

drive plate

Automatic transmission

drive plate to crankshaft

Automatic transmission

18GB to 18GG engines, up to October 1971

SAE 15W-40