Description
Gapless ring design eliminates blow-by and sealing loss, delivering maximum compression and combustion efficiency in high-performance applications. The Total Seal Maxseal construction provides superior ring stability and longevity under extreme cylinder pressures, critical for forced induction and nitrous builds. File-fit rings allow precision custom gapping for your specific engine build, ensuring optimal performance and reliability.
- Gapless top ring
- 4.040″ bore size
- 1/16 x 1/16 x 3/16″ thickness
- Ductile iron construction
- Standard tension design
- File-fit installation
- 8-cylinder kit
- Maxseal technology
- MPN: M3690 45






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