SKU: NPR20-GNHS4080K8
MPN: 20-GNHS4080K8
The Perf. Piston Ring Set V8 4.080 Bore 1.2x1.2x3.0 is engineered for serious V8 builders and performance engine rebuilds where precise bore fitment and ring geometry directly impact compression, blowby control, and long-term reliability. Selecting the correct ring set for your exact bore diameter is crucial to avoid catastrophic failures and oil consumption issues.
This NPR piston ring set is manufactured to exacting tolerances specifically for 4.080-inch bore engines, ensuring proper ring-to-wall contact and optimal seal integrity from cold start to peak operating temperature. The 1.2x1.2x3.0 ring dimension notation specifies the compression ring thickness (1.2 mm), second ring thickness (1.2 mm), and oil control ring thickness (3.0 mm)—a conventional and proven stack height for V8 applications.
Proper installation with correctly honed cylinder walls and accurately torqued rod bolts is essential for maximizing performance. This piston ring set is ideal for stock restorations, mild street engines, or competition builds, ensuring reliability and efficiency in various applications.
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