S2 Continental Chassis Info

The chassis number for these models is composed of two initial fixed letters BC, where the C represents Continental, followed by a number from 1 to 151. Lastly two letters, the first of which determines the model series.

Left hand drive models have an L preceding the last two letters.

The chassis number can be found on a plate attached to the engine compartment bulkhead.

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Release Date	Chassis Number	Modification Detail	introduced at Chassis:
Jul 1959 - Jun 1960	BC1AR to BC151AR	Improved type crown wheel bolts (Phase 1)	BC45AR
		Introduction of seamless propeller shaft	BC66AR
		Hollow camshaft replaced by solid camshaft	BC38AR
		Automatic choke - otter switch	BC106AR
		Lagged air pipes	BC112AR
		Bi-metal cover	BC137AR
		Butterfly valve	BC114AR
		Sealed thermal delay switch	BC11AR
		Improved type crown wheel (Phase 2)	BC52AR
		Engine vibration cushion fitted	BC1AR
		Improved throttle controls on left-hand drive cars	BC2AR
		Modified hydraulic tappets	BC139AR
		SU carburettors	BC149AR
Jun 1960 - Jul 1961	BC1BY to BC1O1BY	S1 type front silencer with modified pipes and flanges	BC16LBY
		Modified starter motor	BC1BY
		Fast idle cam bracket	BC3BY
		New front shock damper mounting plate, brake pedal gap plate	BC1BY
		Shortened extension cone on fan mounting; extension of radiator bottom outlet pipe and new bottom water hose	BC10BY
		New radiator filler cap seal	BC21BY
		New starter motor	BC40BY
		Valves and fittings	BC46BY
		Interior lights -changes to switching arrangements for instrument and capping rail lights and new map lamp, cigar lighter with amber glow ring	BC72BY
		Dynamo mounting bracket, cylinder head assembly and valves, etc	BC51BY
		New silencer assemblies	BC76BY
		New front shock damper body	BC92BY
		Valve rockers and shafts	BC78BY
		Crankcase modified to raise oil level in camshaft trough	BC72BY (except BC97BY)
		Air conditioning - Tecumseh HH compressor replaced by York Shipley	BC90BY
		47”servo cams reducing front to rear brake ratio	BC93BY
		Accelerator pedal stop on right hand drive cars, gearbox throttle valve control on right-hand drive cars	BC99BY
		13 38 ratio crown wheel changed to 13:40	BC100BY
Feb 1961 - Aug 1962	BC1CZ to BC139CZ	Petrol tank breather	BC28CZ
		Heat sink introduced Into automatic choke system	BC37CZ
		Sparking plug waterproof adaptor	BC43CZ
		Blue floodlighting to instruments	BC66CZ
		Hand brake warning light fitted	BC78CZ
		Flasher and headlamp flick switch fitted	BC70CZ
		New starter ring	BC85CZ
		Modified water connections	BC109CZ
		Fuel pump capacity increased	BC112CZ
		Improved valve rockers	BC134CZ
		Rear lamps	BC78CZ
		Brake pedals ball crank lever, lighter steering on left-hand drive cars	BC135LCZ
		Reversion to original starter ring	BC137LCZ
		New method of lubrication cam wheel	BC139CZ