Intake racing valve x 12. Exhaust racing valve x 12. Intake valve (mm): Head Dia 38.15 + 1.0 / Stem Dia 5.96 / Length 95.00. Exhaust valve (mm): Head Dia 33.15 + 1.0 / Stem Dia 5.95 / Length 92.00. and exit the combustion chamber as the valve extends.
