Description
If you’re running a high-performance or aftermarket cylinder head, a proper compression release hole plug is essential to maintain cylinder integrity and prevent air leaks that kill efficiency. The S&S Cycle 90-4916 is precision-engineered for custom and performance heads where OEM specifications don’t apply, ensuring a reliable seal under load. This is the kind of detail that separates a dialed-in build from one with hidden performance drains.
- Manufacturer: S&S Cycle
- Part Number: 90-4916
- Application: Custom/aftermarket heads
- Not compatible with OEM heads
- Made in the U.S.A.
- CNC-precision engineered
- Bolt-on installation
