S&S, sump assembly 48-64, diameter STD. Natural

For use with primary housing of 'tin' (metal). S&S Superstock™ oil pans, manufactured from 356-T6 aluminium, are significantly stronger than the OEM oil pan. OEM oil pans can fracture in high-performance applications or even in standard applications, as many have discovered at their own expense. These S&S Superstock™ oil pans can be used for both standard replacement and competition applications. For the engine builder, the substantial labour saving achieved by using S&S oil pans is important. These oil pans come 'prepared' with Timken main bearings for the pinion shaft and needle bearings for the camshaft installed, and the pinion shaft main bearing seat pressed and ground in-line. Additional parts supplied include Timken pinion shaft bearings, cylinder studs, nickel-plated oil pan bolts, oil pan fittings, oil pressure sensor, timing and magnetic oil pan drain plugs, and a special S&S-designed clamp screw for the alternator stator. Flywheel scrapers are machined to match the original 8-1/2" diameter flywheels. S&S oil pans maximise oil suction efficiency from the sump via a breather duct with 'ports'. S&S oil pans have clearance for diameters up to 5"; no further machining is required for long-stroke crankshafts. S&S oil pans are supplied complete with fitting instructions.

(Keep unchanged: OEM.)
Note: S&S cases for 36-54 Knuckle and Panhead models do not accept OEM flywheels, sprocket shafts or pinion shafts, as late-style (1955 onwards) Timken bearings are used on all S&S cases. Shafts from 55 onwards do not fit 36-54 OEM flywheels; S&S does not recommend machining 36-54 flywheels to accept 55-onwards shafts. For all 36-55 B.T. applications, 58-81 sprocket shafts (MCS 512404) and 55-64 splined pinion shafts (MCS 512401) can be used with S&S flywheels, all of which have a 6° shaft cone with keyway.
Note: The S&S 36-72 oil pump (MCS 519922) can be used with all 36-69 S&S crankcases.
Note: In any application, the technician must be able to judge the suitability of the components in combination with the other engine components, before assembly. It is important that a qualified mechanic carries out the installation and any necessary adjustments.


Specifications


Brand
S&S


Application
48-64 Panhead with steel primary (NU)


Sales unit
Set


Colour
Unpainted


Material
Aluminium


Finish
Raw


Packaging weight
14.398 kg


HS Code
84099100


Motorcycle family
BIG TWIN


Original name
S&S, 48-64 crankcase assembly, STD bore. Natural