SKU: NPR20-GNHM4140K8
MPN: 20-GNHM4140K8
The Perf. Piston Ring Set V8 4.140 Bore 1.2x1.5x3.0 is an essential component for restoring or enhancing the performance of both big-block and small-block V8 engines with a 4.140-inch bore diameter. This set is ideal for mechanics and engine builders looking to rebuild an engine, perform a top-end refresh, or install oversized pistons.
Engineered with a three-piece design, this ring set includes a 1.2mm top ring, a 1.5mm second ring, and a 3.0mm oil control ring. These specifications are designed to optimize gas sealing efficiency while minimizing friction, ensuring the piston moves freely within the bore and effectively controls crankcase oil vapor.
This ring set is crucial for any 4.140-bore V8 engine rebuild, whether for muscle car restorations, vintage hot rods, or modern LS and traditional big-block conversions. Before installation, it is important to confirm the piston dome design, ring groove dimensions, and end-gap requirements with your engine builder or machine shop.
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