Description
Diamond LS2K 4.125 Bore 4.000 Stroke -4.8cc Flat Top Piston Kit 21531-RS-8
Features:
- 3D milling on piston crowns for ready to install finish
- Inboard forging design with fully machined under crown for maximum strength
- Valve pockets designed to work with most aftermarket 12° cylinder heads
- Side gas ports for better ring seal
- Moly skirt coating for friction loss and skirt wear protection
- Top ring down dimension: .280″ (1.115cd) .250″ (1.053cd)
- Ratios figured for .053 head gasket
- Premium 1.5mm x 1.5mm x 3.0mm ring package included
- Premium H-13 .225W wrist pins included chamfered for round wire locks
- Valve pocket depth: 0.220″ intake and .162″ exhaust
- 2618 material for High HP-NOS-Boost applications – rated for 2000HP
