DIAMOND PISTONS
Diamond LS2K 4.155 Bore 4.000 Stroke -4.8cc LSX 12 Flat Top Piston Kit 21570-RS-8
- PART NUMBER:
- 21570-RS-8
- UPC:
- 1.93565E+11
- MPN:
- 21570-RS-8
- Availability:
- Ships from Manufacturer
- Shipping:
- Free Over $98 In U.S. 48
- Type:
- Flat Top Pistons
- Bore (in.):
- 4.155
- Stroke (in.):
- 4.000
- Rod Length (in.):
- 6.125
- Compression Height (in.):
- 1.115
- Crown Volume (cc):
- -4.8
- Compression Ratio w/70cc:
- 11.1:1
- Wrist Pins Included:
- Yes
- Wrist Pin Material:
- H-13
- Pin Diameter (in.):
- 0.927
- Pin Length (in.):
- 2.250
- Alloy:
- 2618
- Rings Included:
- Yes
- Ring Sizes:
- 1.5mm, 1.5mm, 3.0mm
- Weight (g):
- Call
- Int Valve Pocket Depth (in.):
- 0.220
- Exh Valve Pocket Depth (in.):
- 0.162
- Moly Coated Skirt:
- Yes
- For Use w/ Power Adder:
- Yes
- Quantity:
- Sold as set of 8
On Sale
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
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