Description
If you’re building or rebuilding an LS engine, piston selection directly impacts combustion efficiency, detonation resistance, and overall power delivery. The Wiseco GM LS-Series K398X1 delivers the precision fit and thermal stability required for demanding street and track applications, whether you’re running stock boost or forced induction. Backed by Wiseco’s engineering reputation, this piston and ring kit handles the compression and RPM demands of high-performance LS builds without compromise.
- 4.010″ bore diameter
- -3.2cc compression dish
- GM LS-series fitment
- Precision-engineered piston
- Forged aluminum construction
- Complete ring kit included
- Bolt-on installation
- Street and track rated
- High-RPM capable
- OEM-quality reliability
