For 1979 GMC C6000 Rocker Arm Kit 15678NXYS 5.7L V8 OHV Rocker Arm Stock

For 1979 GMC C6000 Rocker Arm 33239YXMM 5.7L V8 OHV Stock

For 1979 GMC C6000 Rocker Arm Kit 33615MXZD 5.7L V8 OHV Rocker Arm Stock

For 1979 GMC C5000 Rocker Arm 75914FXNY 5.7L V8 OHV Stock

For 1979 GMC C5000 Rocker Arm 83529TSZR 5.7L V8 OHV Stock

For 1979 GMC C7000 Rocker Arm 33729BMYZ 5.7L V8 OHV Stock

For 1979 GMC C7000 Rocker Arm Kit 88348NGND 5.7L V8 OHV Rocker Arm Stock

For 1979 GMC C7000 Rocker Arm Kit 28133TYZF 5.7L V8 OHV Rocker Arm Stock