| Engine Type | OA Width | OA Height | Header Tank Depth | Front of Radiator to fixing Holes |
Fixing v/centres | Pipe size in & out | Engine/base mounting |
| D & DK | 10¼" | 15¼" | 6" | 3¾" | 7 13/16" | 1 3/8" | Engine |
| A & AK | 17" | 26" | Not Given | FC: 15¾" X 5½" | N/A | Flange: 1" | Base |
| B & BK | 15 3/8" | 25 3/8"" | Not Given | FC: 11¼" X 5½" | N/A | Flange: 1" | Base |
| F & FK | 10¼" | 15¼" | 4¼" | 3¼" | 7 13/16" | 1 3/8" | Engine |
| G1 & GK1 | 17½" | 21½"" | 9" | 3 1/8"" | 9" | 1 7/8" | Engine |
| G2 & GK2 | 17½" | 21½" | 9" | 3 1/8" | 9" | 1 7/8" | Engine |
| L 6/7 hp | 20" | 32½" | Not Given | FC: 18" X 4 7/16" | N/A | Flange: 1¼" | Base |
| L 8/9 hp | 20" | 32½" | Not Given | FC: 18" X 4 7/16" | N/A | Flange: 1¼" | Base |
| LK 5/5½ hp | 20" | 32½" | Not Given | FC: 18" X 4 7/16" | N/A | Flange: 1¼" | Base |
| LK 6/6½ hp | 20" | 32½" | Not Given | FC: 18" X 4 7/16" | N/A | Flange: 1¼" | Base |
| CS 3/1 3½/1 | 17½" | 21 3/8" | 9" | 3 1/8" | 9" | 1 7/8" | Engine |
| CS 5/1 & 6/1 | 17½" | 21 3/8" | 9" | 3 1/8" | 9" | 1 7/8" | Engine |
| CS 10/2 | 17½" | 21 3/8" | 9" | 3 1/8" | 9" | 1 7/8" | Engine |
| CD | 17½" | 21 3/8" | 9" | 3 1/8" | 9" | 1 7/8" | Engine |
| CE | 17½" | 21 3/8" | 9" | 3 1/8" | 9" | 1 7/8" | Engine |
| 9/1 or JP1 | 15 3/8" | 25 3/8" | Not Given | FC: 11¼" X 5¾" | N/A | Flange: 1" | Base |
| 18/2 or JP2 | 25½" | 33 3/16" | Not Given | FC: 19" X 6½" | N/A | Flange: 1½" | Base |
| 27/3 or JP3 | 25½" | 40" | Not Given | FC: 19" X 6½" | N/A | Flange: 1½" | Base |
| 38/4 or JP4 | 31" | 51" | Not Given | FC: 26½" X 6½" | N/A | Flange: 2" | Base |
| 61-6 or JP6 | TBA | TBA | TBA | TBA | TBA | TBA | TBA |
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