Keith Black Performance Hypereutectic Piston Kit, 3.508″ Bore, 9.6:1

• Manufactured from high-strength, t-6, heat-treated, 390 hypereutectic aluminum alloy

• Allow a tighter fit and longer piston and ring life

• Diamond-machined pistons are held to plus or minus one gram weight and less than on-half-thousandth-inch (.0005″) tolerances from piston to piston

• Includes two pistons, pins, spiro-lock pin clips and Hastings moly rings

• .010″ over bore and 9.5:1 compression