R-Type Continental Chassis Info
The chassis number for these models is composed of two initial fixed letters "BC", followed by a number from 1-78 and a final letter that determines the series of the model.
The chassis number can usually be found on the firewall.
| Release Date | Chassis Number | Modification Detail | Introduced at Chassis: |
| Jun 1952 - Apr 1953 |
BC1A to BC26A |
Reduced compression height pistons | BC19A |
| Apr 1953 - Sep 1953 | BC1B to BC25B | ||
| Aug 1953 - Jul 1954 | BC1C to BC78C | Commonised cylinder head | BC4C |
| Deletion of non-opposed springs in side steering tube | BC18C | ||
| All welded frame | BC21C | ||
| Deletion of reduced friction modifications on steering connections | BC30C | ||
| Introduction of B.VI type gearbox tie rod | BC50C | ||
| Flywheel inertia rings on cars fitted with auto gearbox | BC70C | ||
| Thicker third motion shaft thrust washer | BC78C | ||
| Jul 1954 - Mar 1955 | BC1D to BC74D | 3 3/4" bore engine, compensator pipe between front and rear servo | BC1D |
| Strengthened jaws on front brake operating links | BC5D | ||
| Eliminations of chromium-plated servo pressure plate | BC12D | ||
| Flexibox seal in water pump | BC35D | ||
| Long stroke starter pinion | BC37D | ||
| Improved cold starting device | BC43D | ||
| 2nd speed start | BC47D | ||
| Apr 1955 - Apr 1955 | BC1E to BC9E |