504S - PBM Performance - CHROME -MOLY 7� RETAINERS - fits 1.430"-1.550" O.D. Dual Spring - 3/8" Valve Stem (1.445"x1.060"x.710") - Std
These retainers are machined from aircraft-quality, chrome-moly, alloy-steel that far exceeds the industry standards for steel retainers. All retainers are heat-treated to 46-50 Rockwell- C, then tumbled and finished with black-oxide to prevent rust. PBM Chrome-Moly Retainers, deliver incredible strength, with just slightly more weight than more expensive titanium retainers. Chrome-moly retainers are designed for Street, Off-Road and all but the most severe racing applications. They are ideal for Oval-Track racing.
- Erson Cams
- 7 DEGREE
- CHROME MOLY 1.43-1.550 OD