As shown in the advertisement New set, unused, with rings and pins Fits (LS1 5700) engines Lightweight dome increases engine compression Wiseco Pro Tru Forged LS Part Number: PT124A903 ;Specifications: Forged 4032 Aluminum * Piston size: 3.903 * LS1 bore: +0.005 Dome: +4cc Compression Height: 1.335 Pin Size: 0.945 Floating Pin ArmorGlide Skirt Coating Rings: 1/16 - 1/16 - 3mm Set of 8 pistons Installation: * Fits stock LS1 crank (3.622 Stroke) * Fits stock LS1 rods (6.098 Rod Length) * Suitable for LS1 and LS6 engines after boring the block to 3.903 Bore (5 thousands) 0.005 Approximate compression ratio: * 243 / 799 heads: about 11.0 - 11.2 : * 241 heads: about 10.7 - 10.9 : * 823 heads: about 10.3 - 10.6 : Price 2500 SAR, less than its price in America (Tabby and Tamra) service available Location Dammam and shipping to all regions