1956 MODELS Corr t r ITEM OUANTITY PART N0 DESCRIPTION REMARKS R 2 3138803 Redrucing Bushing 4 New part required Heater Hose Fitting Adapter S 2 3744411 Spark Plug Shield u e Right Front and Left Rear New part required T 2 3744412 Spark Plug Shield Lett Front and Right Rear New part required U 2 3744408 Ignition Wire Support New parts required Used attwofrontspark plug wires both sides V 2 3744409 Ignition Wire Clip S W 1 3725273 Generator Bracket Can be transferred from replaced engine 1955 MODELS Require items A D thru F and H thru W plus the following X 1 1513130 Temperature Gauge New part required Engine Sending Unit connect to Dash Unit using 5298971 Bulk Wire as jumper Y 1 1513378 Temperature Gauge New part required Dash Unit connect to ignition switch or switch controlled terminal on junction block same as above Z 1 3722959 Dil Level Gauge New part required AA 1 3749684 llrankcase Ventilator Tube New part required AB 1 3726643 Ventilator Tube Bracket New part required AC 1 5574538 Oil Frlter Urnit 1 New part required If a new Clutch Housing its userrl enlarge rear mounting holes to M6 diameter and use A6 14 Bolts GENERAL INIFCIRMATIOIN 1 On Models equipped with Powerglilde it will be necessary to removes the Clutch Pilot Bearing from the Crankshaft It will also be necessary to tranrsfer the Flywheel Assy lF lywl1eel I lI ou sing and Components from the Engine being replaced 2 On 1955 56 models grind a flat ran starter motor flange at upper lbolil holle for clearance with cylinder and case Also use a thru bolt and nut to attach s tarter rat this location 3 When installing Clutch I I usingrs Ilransmrission pilot bore alilgnmentt and face runout should be checked as specified in Shop Manual 4 Models with optional equipment requrire llransfer or replacement of erngriine parts special to such options i e special generator would require mountllng bracket and brace to match generator 5 On Models with vacuum Windsllsielld Wipier use Carburetor attachinggr hollow Stud 3749170 for vacuum take off 6 It may be necessary to transfer Inlet Manifold from replaced engine or to drill and tap holes in Inlet Manifold for vacuum takeoff 7 If number shown is not cataloged chreck History Section for repllacirng part number l 3 Est Motor Division General Motors Corporation