ENGINE INSTALLATION INSTRUCTIONS PART NO 3930950 Cont 1963 MODELS Cont SERIES PIO Item Qty Part No Description Remarks Require Items C E W AA AC AD AE AG AN AO AP AY BA BB BH BX CI CJ Purchase new or transfer from replaced engine SERIES CKIO 20 Require Items C E W AE AG AM AP AX BH BP BQ BR BS BU CI CJ CW Purcha se new or transfer from replaced engine SERIES C30 Require Items E W AA AC AD AE AG AM AP AX BH CI CJ Purchase new or transfer from replaced engine SERIES 50 Require Items E W AA AC AD AE AG AP AX BA BH CI CJ plus the following DD n 1 3832808 C1 g H S1 e ASSY C S Models pummss nsw or transfer from re DE 1 3787522 Clutch Housing Assy L Models p1 C d g See G 1 Ink mation Note No 1 Only SERIES P20 30 Require Items E W AA AC AD AE AG AM AO AP BA BB BH BX CE CI CJ Purchase new or transfer from replaced engine GENERAL INFORMATION 1 When installing clutch housing transmission pilot bore alignment and face runout should be checked as specified in the Chevrolet Shop Manual Also transfer inspection cover housing underpan underpan extension clutch fork boot and attaching parts from replaced engine 2 Models with optional equipment require transfer or replacement of engine parts special to such options 3 If any part number listed above is not shown in the master parts catalog check history section for re placing part number 4 The intake manifold of this engine is equipped with an additional vacuum fitting for the crankcase venti lation system If desired this vacuum can be used on past models by removing the dust seal and installing connector Part No 3859374 transferring the hose and clamp from the outboard fitting to the connector IMPORTANT If the above source of vacuum is not used plug the opening with 3 8 cup plug Part No 838323 If converting to use the added source of vacuum plug previously used opening with pipe plug Part No 9420756 If above is used on vehicles equipped with vacuum power brakes seal previously used source of ventilator vacuum by pinching and soldering tube to prevent leakage i 197O CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATIONwP A 30 29