DNJ Engine Exhaust / Intake Valve Kit Engine Details: Nitride Coated; 1 Groove; 50.8mm Head Dia.; 7.97mm Stem Dia.; 123.7mm O.A.L. [ 2.000" Head ] Engine Designation: L20,L33,L59,LC9,LFA,LH6,LH8,LH9,LM4,LM7,LMF,LMG,LS4,LY2,LY5,LZ1Includes: Exhaust Valve...