| Brand | 440 Source |
|---|---|
| Manufacturer Part Number | 200-1157 |
| Material | Steel |
| Performance Part | Yes |
Check the listing for details. Billet SFI Elastomer Damper - Thick (Hemi) Style for Mopar BB 383 440 FREE SHIP!. Condition: New. Listed at 299.95 USD. For maximum dampening ability, the outer ring on these is the identical thickness to a factory 426 Hemi damper at a full 1.5" thick. These passed the SFI testing with zero problems. They are for internal (neutral) balance engines only, they will not work for factory cast crank (externally) balanced engines.