| Release dates |
Chassis number |
Modification |
Modification introduced at |
| Aug. 59 to Dec. 59 |
B1AA to B325AA |
Improved type crown wheel bolts (phase 1) |
B186AA |
| Nov. 59 to Jan. 60 |
B2AM to B326AM |
Introduction of seamless propeller shaft |
B2AM |
| |
|
Hollow camshaft replaced by solid camshaft |
B80AM (excl. B322AM) |
| |
|
Automatic choke otter switch |
B112LAM |
| |
|
Sealed thermal delay switch |
B192AM |
| |
|
Improved type crown wheel bolts (Phase 2) |
B258AM |
| |
|
Engine vibration cushion fitted |
B288AM |
| |
|
Improved throttle controls on left-hand drive cars |
B310LAM |
| Jan. 60 to May 60 |
B1BR to B501BR |
Automatic choke - lagged air pipes |
B409BR |
| May 60 to Aug. 60 |
B2BS to B500BS |
Bi-metal cover |
B437BR |
| |
|
Butterfly valve |
B471BR |
| |
|
Modified hydraulic tappets |
B246BS |
| |
|
S1 type front silencer with modified pipes and flanges |
B418BS |
| |
|
Modified starter motor |
B422BS |
| |
|
SU carburetters |
B452BS |
| |
|
Fast idle cam bracket |
B462BS |
| Sep. 60 to Nov. 60 |
B1CT to B445CT |
New front shock damper mounting plate, brake pedal gap plate |
B1CT |
| Nov. 60 to May 61 |
B2CU to B756CU |
Shortened extension cone on fan mounting; extension of radiator bottom outlet pipe and new bottom water hose |
B18CT |
| |
|
New radiator filler cap seal |
B223CT |
| |
|
New starter motor |
B417CT, B372CU |
| |
|
Valves and fittings, interior lights - changes to switching arrangements for instrument and capping rail lights and new map lamp |
B2CU |
| |
|
Dynamo mounting bracket, cylinder head assembly and valves. etc. |
B52CU |
| |
|
Operating handle fitted to centre vane of capping rail outlet duct, Cigar lighter with amber glow ring |
B180CU |
| |
|
New silencer assemblies |
B280CU |
| |
|
Additional cold air intake, horns under front apron instead of front wing |
B362CU |
| |
|
New front shock damper body |
B392CU |
| |
|
Valve rockers and shafts |
B398CU |
| |
|
Air conditioning unit under sheets changed from fibre glass to steel |
B504CU |
| |
|
Front brakes - material of front brake clevis pins changed |
B554CU |
| |
|
Ash trays in new front seat backs, additional parcel shelf speaker on non-division cars |
B556CU |
| |
|
Crankcase modified to raise oil level in camshaft trough |
B562CU |
| |
|
Air conditioning -Tecumseh HH compressor replaced by York Shipley |
B570CU |
| |
|
47’ servo cams reducing front to rear brake ratio, accelerator pedal stop on right hand drive cars, gearbox throttle valve control on right hand drive cars, 13:38 ratio crown wheel changed to 13:40 |
B576CU |
| |
|
Spare wheel compartment cover |
B592CU |
| Apr. 61 to Dec. 61 |
B1DV to B501DV |
New boot lock cam |
B59DV |
| Dec. 61 to Aug. 62 |
B2DW to B376DW |
Petrol tank breather |
B81DV |
| |
|
Top mounting assembly electric window lift |
B167DV |
| |
|
Heat sink introduced into automatic choke system |
B175DV |
| |
|
New rear bumper support springs, sparking plug waterproof adaptor |
B231DV |
| |
|
Rear seat footrests, two matrices instead of one in heating and demisting system, rear window demister switch moved to instrument panel, sliding door to front door cubbv box, interior mirror support stiffened |
B415DV |
| |
|
Blue floodlighting to instruments, hand brake warning light fitted, flasher and headlamp flick switch fitted, improved heating system |
B415DV |
| |
|
New starter ring |
B457DV |
| |
|
Smaller ball catches and striker plates on fall tables in rear of front seats |
B467DV |
| |
|
New cigar lighters in rear |
B493DV |
| |
|
Door seals |
B497DV |
| |
|
Modified water connections |
B22LDW |
| |
|
Fuel pump capacity increased |
B28DW |
| |
|
Improved valve rockers |
B142DW |
| |
|
Rear lamps |
B148DW |
| |
|
Brake pedals ball crank lever |
B154LDW |
| |
|
Lighter steering on left-hand drive cars |
B192LDW |
| |
|
Reversion to original starter ring |
B208DW |
| |
|
New method of lubricating cam wheel |
B222DW |
