150cc Crankcase without Silent Block Bushes (Thicker cylinder flange) Slightly Damaged (21-115*)

150cc Crankcase without Silent Block Bushes (Thicker cylinder flange) Slightly Damaged



Slightly damaged 150cc crankcase (SIL) comes with a GP endplate & has a thicker cylinder flange, which is ideal for tuning or for converting to 200cc. All new SIL crankcases come without any engine number or SIL logo.

Damage varies depending on which crankcase you buy, some crankcases have damage around the rear brake area, others may have a cut mark around the rear brake cam hole which will not cause any problems when in use.



If you have ever wondered why the crankcase is sold with an endplate, it's because in the final machining operation on the crankcase, the crankcase rear hub bearing surfaces and endplate surfaces are bored and finished at the same time, and therefore are a matching pair.

Before machining, the endplate is fastened to the crankcase. The surface for the gear cluster bearing bush on the crankcase, the layshaft bearing bush and the endplate bearing (6004) on the endplate are bored and finished at the same time as the rear hub bearing surface is machined.

All engine casings are supplied with the following;
2 x 8mm silencer studs
6 x 7mm gear flange studs (already fitted)
1 x 6mm tail pipe stud
3 x magneto flange studs
4 x rear hub bearing flange studs
1 x GP endplate
1 x gear cluster bearing bush and washer (already fitted)

Also available - 200cc Crankcase.

Discount is not applicable


Related Categories :
Lambretta Crankcase/Cylinder
Sec 21 - SR Lambretta Special Offers
Related Illustrations & Products :
GP150 Engine (SIL)
[Out of Stock] 1,300.00
GP150 Engine (SIL) Vijay Super MK II
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GP200 Engine (SIL)
[Out of Stock] 1,300.00
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List Price: 299.95

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