Powerbond Balancers PB1112-SS 7.24" SFI Approved Steel Harmonic Balancer for Big Block
- Big block Mopar RB-Series
- SFI-18.1 approved, steel
- 7.240 in OD
- External balance
- Clear powder coat
Updated 2 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A steel damper meeting SFI rules for big block Mopar race engines. Bolt pattern and groove details are not listed.
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ASIN: B003NECMNSModel: PB1112SSCategory: Harmonic Balancers
Overview
Not a stock-replacement damper, this Powerbond piece is built for competition use on the RB-Series engines. It is steel with a clear powder coat, SFI approval and an external balance.
It covers the big block Mopar case where an approved damper is needed. Detail on groove layout, bore and balance amount is missing.
Who it's for
Drag and circle track builders on RB-Series engines. A buyer repairing a street car should check the application carefully first.
Pros and cons
- Clear powder coat
- RB-Series application listed
- Groove layout not listed
- Balance amount not given
- Crank bore details missing
Performance notes
The damper reduces crankshaft twisting vibration, which helps protect bearings at high rpm. External balance means it must be matched to an engine balanced the same way.
Specifications
| Model | PB1112SS |
|---|---|
| Dimensions & fit | |
| Outer diameter | 7.240 in |
| Weight | 7.74 pounds |
| Dimensions | 8.2 x 7.7 x 2.8 inches |
| Package Weight | 7.72Lbs |
| Construction & materials | |
| Material | Steel |
| Finish | Clear powder coat |
| Compatibility & installation | |
| Application | Big block Mopar RB-Series |
| Other details | |
| Certification | SFI-18.1 |
| Balance | External |
| Product Type | Auto Part |
Frequently asked questions
Is the PB1112-SS for small block Mopars?
No. It is listed for the big block RB-Series.
What is the outer diameter of the PB1112-SS?
It is 7.240 inches.