Quick view 1986 GMC C3500 5.0L Intake Valve IV3125AZE129 1986 GMC C3500 5.0L Intake Valve Engine Parts # IV3125AZE129 Fits: [1980-1996] GM [Nitride Coated; 2 Groove; 46.7mm Head Dia.; 8.7mm Stem Dia.; 124.8mm O.A.L.] / V6, V8 / 3.8L, 5.0L / 229, 305 OHV... MSRP: Was: Now: $11.97 Choose Options