Wiseco SBC Strutted Flat Top 1.125inch CH Piston Shelf Stock Kit

The Wiseco K0001X5 SBC Strutted Flat Top Piston Shelf Stock Kit is a professional-grade forged piston kit designed for Small Block Chevrolet 350 engines with 23-degree cylinder heads. These high-strength pistons feature a 4.050" bore, 3.480" stroke, and a 1.125" compression height, suitable for use with 6.000" or 6.125" connecting rods. The -5.7cc flat top dome volume provides compression ratios ranging from 11.1:1 with 58cc cylinder heads to 9.7:1 with 70cc heads. Key features include valve pocket designs for maximum flow with oversized valves and high lift cams, piston crown shapes optimizing intake charge efficiency, and domes designed for optimal quench to resist detonation. The pistons incorporate precision-machined ring grooves, complex skirt profiles to reduce friction and improve bore stability, and are manufactured from 2618 high-strength alloy in an ISO Certified forging facility. The kit includes S643 pins and has an advertised weight of 392 grams per piston. Recommended ring set is 4052GFX.