Description
Diamond LS2K 4.155 Bore 4.000 Stroke -4.8cc LSX 12 Flat Top Piston Kit 21570-RS-8
Chevy LSX 12°
With the use of aftermarket blocks becoming more common, Diamond has answered the need for oversize bore sizes available in our popular LS2K series 2000hp shelf line-up, expanding the bore offerings with oversize’s of 4.135, 4.145, 4.155 & 4.165 bores. Diamond Pistons is the industry leader for world-class, cutting-edge manufactured, pistons that are purpose-built to handle the high-boost demand environment required to get the most out of your high performance LS engine. These Diamond Pistons come equipped with:
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 cylinder heads
- Side gas ports for better ring seal
- Moly skirt coating for friction loss and skirt wear protection
- Top ring down dimension: .280″
- Ratios figured for .053 head gasket
- Premium 1.5mm x 1.5mm x 3.0mm ring package included
- Premium H-13 .250W 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
