JE Pistons, 4.145" bore, 1.345" Compression height, 1.2 x 1.2 x 3.0 Rings, .927" pins with locks, .300" deep intake pocket, .200" deep exhaust pocket, .300" tall dome. Dyno time only. Items are for sale locally and can be sold to a walk-in customer at anytime, ending the sale on here.