SBC Stainless Steel Valves, In. .341" stem, 2.080" head, 5.040" overall length. Ex. .341" stem, 1.600" head, 5.065" overall length. 2) sets of valve springs, dual with a damper, 1.560" O.D. All items for sale locally and can end at anytime. Make sure item is what you want, no returns. Payment is due in full at time of transaction or sale will be voided.