GM CHEVROLET r 1 5 14 a 15 10 0 16 38 11 12 14 13 31 19 21 20 t 36 21 23 19 35 2 24 26 25 33 c fill 31 30 HEAD AND MANIFOLDS 230 ENGINE TYPICAL Key Description Group Key Description Group 1 Cover Valve Rocker 0 386 20 Head Cylinder 0 269 2 Gasket Valve Rocker Cover 0 423 21 Gasket Spark Plug 2 270 3 Plug Spark 2 270 22 Stud Intake Manifold Carburetor to Manifold 3 288 4 Arm Valve Rocker 0 333 23 Valve Intake 0 296 5 Ball and Nut Unit Valve Rocker Arm 0 429 24 Valve Exhaust 0 297 6 Seal Valve Stem Oil 0 297 25 Rod Valve Push 0 426 7 Key Valve Stem 0 310 26 Bolt Exhaust Manifold Clamp Standard Stock 8 900 8 Cap Valve Spring 0 309 27 Clamp Manifold 3 273 9 Shield Valve Stem Oil 0 308 28 Gasket Manifold Between Intake and Exhaust 3 272 10 Spring Valve 0 303 29 Nut Inlet 8 Exhaust Manifold Stud Standard Stock 8 900 11 Stud Valve Rocker Arm Ball 0 429 30 Stud Manifold Exhaust Flange to Manifold 3 275 12 Plug Standard Stock 8 971 31 Pocking Exhaust Pipe 3 611 13 Bolt Standard Stock 8 900 32 Stud Manifold Intake to Exhaust 3 275 14 Lockwasher Standard Stock 8 931 33 Manifold Exhaust 3 601 15 Outlet Water 1 153 34 Gasket Manifold intake and Exhaust to Block 3 272 16 Gasket Water Outlet 1 154 35 Stud Inlet and Exhaust Clamp 3 275 17 Thermostat Motor 1 246 36 Manifold Intake 3 265 18 Housing Thermostat 1 251 37 Gasket Cylinder Head 0 289